《纳米研究》2022年第10期目录

原创编辑部 NanoResearch

Carbon

Research Articles

Rationally tailoring interface characteristics of ZnO/amorphous carbon/graphene for heat-conduction microwave absorbers

Maofan Zhou, Xuefei Xu, Gengping Wan, Pengpeng Mou, Shengjie Teng, and Guizhen Wang^*

Hainan University, China

The highly uniform ZnO/amorphous carbon (ZnO/AC) hybrid films covered on the surface of graphene (ZnO/AC/Graphene) is innovatively reported to use as a heat-conduction microwave absorber. The uniform and controllable ZnO/AC coating synthesized with the auxiliary of atomic layer deposition technology can significantly improve the microwave absorption performance and thermal conduction properties of graphene.

8677–8687

Pomegranate micro/nano hierarchical plasma structure for superior microwave absorption

Chunyan Ding^1,4, Tao Wu^1,*, Xinsen Hu¹, Chengshuai Shao¹, Zhipeng Xu¹, Hui Fu¹, Songsong Wu^1,3,*, Guangwu Wen^1,3,4, and Xiaoxiao Huang^2,*

¹ Shandong University of Technology, China

² Harbin Institute of Technology, China

³ Shandong Industrial Ceramics Research & Design Institute Co., Ltd., China

⁴ Shandong Institute of Advanced Ceramic Co., Ltd., China

VSe_2−x presents stronger adsorption towards lithium polysulfides due to selenium vacancies and shows the bidirectional catalysis towards the sulfur redox reactions.

8688–8696

Glucose measurement via Raman spectroscopy of graphene: Principles and operation

Alireza Ahmadianyazdi, Ngoc Hoang Lan Nguyen, Jie Xu, and Vikas Berry^*

University of Illinois at Chicago, USA

A graphene Raman spectroscopy-based sensor (GRS) is introduced to detect glucose molecules at the graphene’s interface with a liquid medium. Upon increasing glucose concentration, Fermi energy of graphene functionalized with 1-pyrene boronic acid (PBA) increases, while it decreases when graphene is functionalized with glucose oxidase (GOx) enzymes.

8697–8704

Heteroatoms-doped carbon nanocages with enhanced dipolar and defective polarization toward light-weight microwave absorbers

Hanxiao Xu¹, Guozheng Zhang¹, Yi Wang¹, Yiruo Wang¹, Huanlei Wang^2,*, Ying Huang¹, and Panbo Liu^1,*

¹ Northwestern Polytechnical University, China

² Ocean University of China, China

Hollow engineering decreases the complex permittivity and simultaneously promotes impedance characteristics, and doped heteroatoms generate additional dipole polarization, both of them result in superior microwave absorption.

8705–8713

Catalytic

Review Article

Advances and challenges in two-dimensional materials for oxygen evolution

Tianmi Tang¹, Saisai Li², Jianrui Sun², Zhenlu Wang¹, and Jingqi Guan^1,*

¹ Jilin University, China

² Changchun University of Technology, China

This review introduces various synthesis methods of two-dimensional materials (including layered double hydroxides, metal-organic frameworks and their derivatives, covalent-organic frameworks, graphene, and black phosphorus), characterization techniques, and novel strategies (including metal/nonmetal doping, defect engineering, interface engineering, lattice strain, and fabrication of heterojunction) for improving the oxygen evolution reaction performance. Thereinto, the structure–function relationship is emphatically analyzed to gain deeper insight into the reaction mechanism and provide guidance for designing more efficient oxygen evolution reaction (OER) electrocatalysts.

8714–8750

Research Articles

Non-noble metal-based amorphous high-entropy oxides as efficient and reliable electrocatalysts for oxygen evolution reaction

Qianqian Wang^1,2, Jiaqi Li¹, Yongjie Li¹, Genmiao Shao¹, Zhe Jia¹, and Baolong Shen^1,*

¹ Southeast University, China

² Nanjing Institute of Technology, China

FeCoNiPB non-noble metal-based amorphous high-entropy oxides exhibit an outstanding oxygen evolution reaction (OER) catalytic performance. The superior OER electrocatalytic efficiency and stability of the FeCoNiPB oxides are primarily attributed to its unique amorphous high-entropy nanostructure, synergistic effects of the multiple components, and in situ-formed amorphous sheets with a thin (FeCoNi)OOH crystalline layer on the edge during long-term OER.

8751–8759

Defect-rich ultrathin poly-heptazine-imide-framework nanosheets with alkali-ion doping for photocatalytic solar hydrogen and selective benzylamine oxidation

Chaofeng Zhu¹, Xiao Luo¹, Congyan Liu¹, Yang Wang^1,2, Xihai Chen¹, Yan Wang¹, Qing Hu¹, Xiaojun Wu^1,*, and Bo Liu^1,*

¹ University of Science and Technology of China, China

² Max Planck Institute of Colloids and Interfaces, Germany

A facile salt template-assisted interfacial polymerization strategy is proposed for in-situ introducing defective sites and alkali ions in carbon nitride to promote charge separation and transportation. The obtained v-CN-KNa (CN = carbon nitride) not only shows superior photocatalytic hydrogen evolution reaction (HER) performance in real seawater, but also can simultaneously produce H₂ and N-benzylidenebenzylamine without using any sacrificial reagent.

8760–8770

Phosphorus-induced electronic structure reformation of hollow NiCo₂Se₄ nanoneedle arrays enabling highly efficient and durable hydrogen evolution in all-pH media

Guojing Wang, Yuzhuo Sun, Yidan Zhao, Yang Zhang, Xiaohong Li, Louzhen Fan, and Yunchao Li^*

Beijing Normal University, China

P_8.71-NiCo₂Se₄/CFP hollow nanoneedle arrays grown on carbon fiber paper were first synthesized, which exhibit an outstanding hydrogen evolution reaction (HER) performance and good durability in all-pH media due to the optimized electronic structure and the increased active sites induced by the P doping.

8771–8782

Ultrathin covalent organic framework nanosheet-based photoregulated metal-free oxidase-like nanozyme

Yongwu Peng^1,4, Minchu Huang¹, Liangjun Chen¹, Chengtao Gong¹, Nanjun Li¹, Ying Huang^2,*, and Changming Cheng^3,*

¹ Zhejiang University of Technology, China

² Southwest University of Science and Technology, China

³ China Academy of Engineering Physics (CAEP), China

⁴ Yancheng Teachers University, China

By using flexible photoactive building units, ultrathin covalent organic framework nanosheets are designed as novel photoregulated metal-free oxidase-like nanozyme, which can effectively catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) under light irradiation in the presence of O₂.

8783–8790

Ultralow-loading single-atom cobalt on graphitic carbon nitrogen with robust Co-N pairs for aerobic cyclohexane oxidation

Enxian Yuan^1,*, Meixia Zhou¹, Guojun Shi¹, Panming Jian¹, and Xu Hou^2,*

¹ Yangzhou University, China

²Changchun University of Technology, China

A series of single-atom Co/g-C₃N₄-w catalysts, possessing the ultralow Co loading of below 1.0 wt.‰, were prepared by the adsorption method. Co/g-C₃N₄-0.9 exhibited the superior catalytic performance for the solvent-free cyclohexane oxidation with the 23.8% conversion, 95.6% selectivity, and excellent stability.

8791–8803

Superoxide-like Cu/GO single-atom catalysts nanozyme with high specificity and activity for removing superoxide free radicals

Mingju Lu¹, Jialu Wang¹, Guoyuan Ren¹, Fengjuan Qin², Zhiqiang Zhao¹, Kai Li¹, Wenxing Chen^2,*, and Yuqing Lin^1,*

¹ Capital Normal University, China

² Beijing Institute of Technology, China

Inspired by the structure of natural superoxide dismutase (SOD), we synthesized graphene oxide-supported Cu single-atom catalysts (Cu/GO SACs, GO = graphene oxide) through the simple and easy-to-operate ultrasound method at room temperature. The Cu/GO SACs exhibit excellent SOD-like enzyme performance, but do not possess the properties of other common redox enzymes, and show even higher catalytic ability by 31% than natural enzymes.

8804–8809

In-situ oxidized tungsten disulfide nanosheets achieve ultrafast photocatalytic extraction of uranium through hydroxyl-mediated binding and reduction

Huanhuan Liu¹, Jia Lei¹, Changyao Gong¹, Ye Li¹, Huimei Chen², Jiali Chen¹, Fengchun Wen¹, Dengjiang Fu¹, Yan Liu^2,*, Wenkun Zhu^1,*, and Rong He^1,*

¹ Southwest University of Science and Technology, China

² Anhui Normal University, China

The oxidized surface tended to trap hydrogen atom and in-situ form hydroxyl groups in defect sites. The in-situ formed hydroxyl groups were participated in the uranium reduction, which dramatically enhanced uranium extraction kinetics and efficiency.

8810–8818

Pd-Sn alloy nanoparticles for electrocatalytic methanol oxidation: Phase evolution from solid solution to intermetallic compounds

Jinna Xue¹, Zheng Hu^1,*, Hui Li^1,2, Yu Zhang^1,2, Chang Liu¹, Min Li¹, Qiuhua Yang^1,*, and Shi Hu^1,2,*

¹ Tianjin University, China

² Hefei Comprehensive National Science Center, China

The Pd-Sn alloy realizes the phase transition from solid solution to intermetallic compound, in which Pd₃Sn₂ exhibits excellent methanol oxidation reaction (MOR) performance. And then density functional theory (DFT) calculations show that the surface structure has a great influence on the performance.

8819–8825

Interfacial engineering of metallic rhodium by thiol modification approach for ambient electrosynthesis of ammonia

Meng Jin^1,2, Xinyuan Zhang^1,2, Xian Zhang^1,2,*, Hongjian Zhou^1,2, Miaomiao Han³, Yunxia Zhang^1,2, Guozhong Wang^1,2, and Haimin Zhang^1,2,*

¹ Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, China

² University of Science and Technology of China, China

³ Huzhou University, China

A comprehensive understanding of controlling the surface environment toward nitrogen reduction reaction performance combined with experimental and theoretical studies over different dodecanethiol coverages Rh catalysts, revealed the synthetical effect of metal–organic interface and H* coverage on the electrochemical NRR activity.

8826–8835

Polydopamine nanolayer assisted internal photo-deposition of CdS nanocrystals for stable cosensitized photoanode

Na Li¹, Lu Han^1,*, Hainan Zhang¹, Juntong Huang², Xudong Luo¹, Xibao Li^2,*, Yuanhao Wang^3,*, Weiqi Qian⁴, and Ya Yang^4,*

¹University of Science and Technology Liaoning, China

²Nanchang Hangkong University, China

³ Southern University of Science and Technology, China

⁴ Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China

Sandwich structured CdS@PDA/TiO₂ nanotube arrays (NTAs) synthesized via an ingenious four-step synthesis process exhibit enhanced and stable photo-electro-chemical (PEC) performance under light irradiation, which can be attributed to co-photosensitization, optimized photogenerated charge transfer, transport route arised from CdS embedding, and inhibition of CdS photocorrosion covered by polydopamine (PDA) shelter. This advance bodes well for the development of PEC field founded on multifunctional PDA.

8836–8845

Reduction-induced interface reconstruction to fabricate MoNi₄-based hollow nanorods for hydrazine oxidation assisted energy-saving hydrogen production in seawater

Lili Guo, Qingping Yu, Xuejun Zhai, Jingqi Chi^*, Tong Cui, Yu Zhang, Jianping Lai, and Lei Wang^*

Qingdao University of Science and Technology, China

The MoNi alloys supported on MoO₂ nanorods with enlarged hollow diameter on Ni foam (MoNi@NF) are synthesized, which is constructed by limiting the outward diffusion of Ni via annealing and thermal reduction of NiMoO₄ nanorods. When coupling hydrazine oxidation reaction (HzOR) and hydrogen evolution reaction (HER) by employing MoNi@NF as both anode and cathode in a two-electrode seawater system, a low cell voltage of 0.54 V is required to achieve 1,000 mA·cm⁻², with long-term durability for 100 h to keep above 100 mA·cm⁻² and nearly 100% Faradaic efficiency.

8846–8856

Synergizing high valence metal sites and amorphous/crystalline interfaces in electrochemical reconstructed CoFeOOH heterostructure enables efficient oxygen evolution reaction

Xiangjian Liu, Rui Liu, Jinming Wang, Yarong Liu, Liuhua Li, Wenxiu Yang^*, Xiao Feng, and Bo Wang^*

Beijing Institute of Technology, Chinaa

The CoFeOOH nanosheet/Ni foam (CoFeOOHNS/NF) with abundant high valence metal and amorphous/crystalline heterostructure interfaces was prepared by an electrochemical reconstructed method. The resulting CoFeOOHNS/NF electrode exhibited excellent oxygen evolution reaction (OER) performance and comparable water splitting activity in alkaline solution.

8857–8864

Bifunctional Fe-doped CoP@Ni₂P heteroarchitectures for high-efficient water electrocatalysis

Zhongxin Duan, Depeng Zhao, Yuchen Sun, Xiaojie Tan, and Xiang Wu^*

Shenyang University of Technology, China

In this work, we have prepared a high-efficient electrocatalyst by constructing a heterogeneous structure and cation doping.

8865–8871

Confined interface engineering of self-supported Cu@N-doped graphene for electrocatalytic CO₂ reduction with enhanced selectivity towards ethanol

Dejin Zang^1,*, Xuejiao J. Gao³, Leyun Li³, Yongge Wei⁴, and Haiqing Wang^2,*

¹ Shandong First Medical University & Shandong Academy of Medical Sciences, China

² University of Jinan, China

³ Jiangxi Normal University, China

⁴ Tsinghua University, China

Self-supported Cu@N-doped graphene framework was prepared through template-directed chemical vapour deposition (CVD). Confined interface engineering was proved to be effective in promoting C₂-ethanol selectivity in CO₂ reduction reaction (CO₂RR).

8872–8879

A core-satellite structured type II heterojunction photocatalyst with enhanced CO₂ reduction under visible light

Yuanyuan Cheng¹, Yixian Liu¹, Yunliang Liu¹, Yaxi Li¹, Ruqiang Wu¹, Yongchao Du¹, Najmeh Askari¹, Naiyun Liu¹, Fen Qiao¹, Chenghua Sun^2,*, Zhenhui Kang^3,*, and Haitao Li^1,*

¹ Jiangsu University, China

² Swinburne University of Technology, Australia

³ Soochow University, China

A facile microwave-related synthesis method of Mn₃O₄/FeNbO₄ type II heterojunction photocatalyst with a core-satellite structure was developed. The prepared Mn₃O₄/FeNbO₄ type II photocatalyst exhibits obvious enhanced catalytic properties in the photocatalytic CO₂ reduction reaction, where the CH₄ yielding rate is 1.96 and 9.81 times those of FeNbO₄ and Mn₃O₄, respectively. This work provides a promising strategy for designing an efficient photocatalyst applied for CO₂ reduction reaction.

8880–8889

MoC nanocrystals confined in N-doped carbon nanosheets toward highly selective electrocatalytic nitric oxide reduction to ammonia

Ge Meng^1,*, Mengmeng Jin², Tianran Wei³, Qian Liu⁴, Shusheng Zhang⁵, Xianyun Peng^6,*, Jun Luo², and Xijun Liu^3,*

¹ Wenzhou University, China

² Tianjin University of Technology, China

³ Guangxi University, China

⁴ Chengdu University, China

⁵ Zhengzhou University, China

⁶ Institute of Zhejiang University–Quzhou, China

Electrochemical nitric oxide reduction reaction (NORR) to produce ammonia (NH₃) under ambient conditions is a promising alternative to the energy and carbon-intensive Haber–Bosch approach, but its performance is still improved. Herein, molybdenum carbides (MoC) nanocrystals confined by nitrogen-doped carbon nanosheets are first designed as an efficient and durable electrocatalyst for catalyzing the reduction of NO to NH₃ with maximal Faradaic efficiency of 89% ± 2% and a yield rate of 1,350 ± 15 μg·h⁻¹·cm⁻² at the applied potential of −0.8 V vs. reversible hydrogen electrode (RHE) as well as high stable activity with negligible current density and NH₃ yield rate decays over a 30 h continue the test. Moreover, as a proof-of-concept of Zn–NO battery, it achieves a peak power density of 1.8 mW·cm⁻² and a large NH₃ yield rate of 782 ± 10 μg·h⁻¹·cm⁻², which are comparable to the best-reported results. Theoretical calculations reveal that the MoC(111) has a strong electronic interaction with NO molecules, thus lowering the energy barrier of the potential-determining step and suppressing hydrogen evolution kinetics. This work suggests that Mo-based materials are a powerful platform providing great opportunities to explore highly selective and active catalysts for NH₃ production.

8890–8896

DFT-assisted rational design of CoM_xP/CC (M = Fe, Mn, and Ni) as efficient electrocatalyst for wide pH range hydrogen evolution and oxygen evolution

Xiangrui Zhang, Chunyan Sun, Shusheng Xu^*, Mengru Huang, Yi Wen, and Xue-Rong Shi^*

Shanghai University of Engineering Science, China

A joint density-functional theory-experiment rational design strategy is employed. The prepared bimetallic phosphides, especially CoFe_0.05P with the zero-dimensional (0D)/two-dimensional (2D) structure, delivered excellent hydrogen evolution reaction (HER) performances in four kinds of electrolytes and oxygen evolution reaction (OER) in two kinds of electrolytes.

8897–8907

Homoleptic alkynyl-protected Ag₃₂ nanocluster with atomic precision: Probing the ligand effect toward CO₂ electroreduction and 4-nitrophenol reduction

Leyi Chen¹, Fang Sun², Quanli Shen¹, Lubing Qin¹, Yonggang Liu¹, Liang Qiao³, Qing Tang^2,*, Likai Wang^4,*, and Zhenghua Tang^1,5,*

¹ South China University of Technology, China

² Chongqing University, China

³ PetroChina Company Limited, China

⁴ Shandong University of Technology, China

⁵ Jinan University, China

A novel homoleptic alkynyl-protected Ag₃₂ nanocluster was first-time synthesized, and it exhibited superior catalytic performance toward both CO₂ electroreduction and 4-nitrophenol reduction than the thiolate and phosphine ligands co-protected Ag₃₂ counterpart. Density functional theory (DFT) calculations revealed that, one ligand stripping off exposed undercoordinated metal atom is the active site for both clusters, and alkynyl-protected Ag₃₂ nanocluster favors the formation of the key *COOH intermediate and the adsorption of 4-nitrophenol.

8908–8913

CeO₂ nanoparticles with oxygen vacancies decorated N-doped carbon nanorods: A highly efficient catalyst for nitrate electroreduction to ammonia

Zerong Li¹, Zhiqin Deng², Ling Ouyang², Xiaoya Fan², Longcheng Zhang², Shengjun Sun², Qian Liu³, Abdulmohsen Ali Alshehri⁴, Yonglan Luo^1,*, Qingquan Kong^3,*, and Xuping Sun^2,5,*

¹ China West Normal University, China

² University of Electronic Science and Technology of China, China

³ Chengdu University, China

⁴ King Abdulaziz University, Saudi Arabia

⁵ Shandong Normal University, China

CeO₂ nanoparticles with oxygen vacancies (VO) decorated N-doped carbon nanorods on graphite paper (CeO₂_−x@NC/GP) perform efficiently and stably for nitrate reduction electrocatalysis, achieving a remarkably high Faradic efficiency of 92.93% and a large ammonia yield of 712.75 μmol·h⁻¹·cm⁻² in 0.1 M NaOH with 0.1 M NO₃⁻.

8914–8921

N, O-doped carbon foam as metal-free electrocatalyst for efficient hydrogen production from seawater

Qian Liu¹, Shengjun Sun², Longcheng Zhang², Yongsong Luo², Qin Yang², Kai Dong², Xiaodong Fang¹, Dongdong Zheng², Abdulmohsen Ali Alshehri³, and Xuping Sun^2,4,*

¹ Chengdu University, China

² University of Electronic Science and Technology of China, China

³ King Abdulaziz University, Saudi Arabia

⁴ Shandong Normal University, China

N, O-doped carbon foam derived from commercial melamine foam is a high-efficiency metal-free electrocatalyst for hydrogen production from acidic seawater, requiring small overpotential of 161 mV to drive 10 mA·cm⁻² with a low Tafel slop of 97.5 mV·dec⁻¹.

8922–8927

Intensifying uneven charge distribution via geometric distortion engineering in atomically dispersed M-N_x/S sites for efficient oxygen electroreduction

Zhuting Zhang¹, Simin Yang¹, Rui Jiang¹, Tian Sheng^2,*, Chunfeng Shi^3,*, Yueguang Chen^1,*, and Leyu Wang^1,*

¹ Beijing University of Chemical Technology, China

² Anhui Normal University, China

³ SINOPEC, China

A novel seed encapsulation–decomposition strategy was proposed for the geometric engineering and thermal atomization of a series of Cu-N_x/S sites by peripheral C–S or C–N bond cleavage. The increased distortion degree of the Cu-N_x/S molecular structure intensified charge redistribution, changed the rate-determining step and substantially decreased the overall oxygen reduction reaction (ORR) energy barriers for Zn-air batteries.

8928–8935

Efficient bifunctional catalysts of CoSe/N-doped carbon nanospheres supported Pt nanoparticles for methanol electrolysis of hydrogen generation

Yang Zhou¹, Qiaowei Wang¹, Xinlong Tian², and Ligang Feng^1,*

¹ Yangzhou University, China

² Hainan University, China

The increased charge density of Pt induced by CoSe/NC support has a bifunctional ability for optimizing H* adsorption energy in hydrogen evolution reaction and weakening the CO adsorption energy for methanol oxidation reaction.

8936–8945

Energy

Research Articles

Enhancing Li-ion conduction and mechanical properties via addition of fluorine-containing metal–organic frameworks in all-solid-state cross-linked hyperbranched polymer electrolytes

Wen Wen^1,2, Qinghui Zeng¹, Pingping Chen¹, Xin Wen¹, Zhenfeng Li¹, Yu Liu¹, Jiazhu Guan¹, Anqi Chen¹, Wei Liu^1,*, and Liaoyun Zhang^1,*

¹ University of Chinese Academy of Sciences, China

² PetroChina, China

A novel composite solid polymer electrolyte (CSPE) with high Li⁺ transference number for Li-metal batteries containing metal−organic framework (MOF) fillers UiO-66-(F)₄ and hyperbranched polyether-based polymer matrix is prepared via a quick method. The coin and pouch cells assembled with the CSPEs can light up the light emitting dioxide (LED) lamps.

8946–8954

Degradation mechanism and stability improvement of formamidine-based perovskite solar cells under high humidity conditions

Fengren Cao, Peng Zhang, Haoxuan Sun, Meng Wang, and Liang Li^*

Soochow University, China

Through X-ray diffraction and scanning electron microscopy characterization of different perovskite systems in a high humidity environment, the degradation process and corresponding mechanism of commonly used formamidine-based perovskite films under high humidity were presented. On this basis, a seed solution strategy in a two-step preparation process was adopted to enhance the performance and stability of formamidine-based perovskite solar cells.

8955–8961

Tuning Li-excess to optimize Ni/Li exchange and improve stability of structure in LiNi_0.8Co_0.1Mn_0.1O₂ cathode material for lithium-ion batteries

Fangya Guo, Yongfan Xie, and Youxiang Zhang^*

Wuhan University, China

Electrochemical performance of LiNi_0.8Co_0.1Mn_0.1O₂ was optimized by adjusting the ratio of Li-excess during the calcination. Moderate Li-excess contributes to larger Li slab space and optimizes the Ni/Li exchange.

8962–8971

In-situ embedding CoTe catalyst into 1D-2D nitrogen-doped carbon to didirectionally regulate lithium-sulfur batteries

Bin Li¹, Peng Wang¹, Baojuan Xi^1,*, Ning Song¹, Xuguang An², Weihua Chen³, Jinkui Feng¹, and Shenglin Xiong^1,*

¹ Shandong University, China

² Chengdu University, China

³ Zhengzhou University, China

Two-dimensional (2D) graphene with a laminar structure and one-dimensional (1D) carbon nanotubes were constructed to serve as support for highly conductive CoTe nanoparticles (CoTe⊂NCGs) via the in-situ embedding. The established optimization strategy renders CoTe⊂NCGs with both lithiophilic and sulfiphilic properties, targeting high-performance Li-S batteries.

8972–8982

Enhanced ionic diffusion interface in hierarchical metal-organic framework@layered double hydroxide for high-performance hybrid supercapacitors

Yanan Zhang¹, Junlei Chen¹, Chenyang Su¹, Keyao Chen¹, Huabin Zhang², Yuhao Yang¹, and Wenhuan Huang^1,*

¹ Shaanxi University of Science and Technology, China

² King Abdullah University of Science and Technology, Kingdom of Saudi Arabia

An enhanced ionic diffusion HKUST-1/CoNi layered double hydroxide (LDH) interface in hybrid supercapacitor (HSC) electrode delivers high energy density of 39.8 Wh·kg⁻¹ at a power density of 799.9 W·kg⁻¹ with an outstanding capacitance retention of 90% after 5,000 charge–discharge cycles.

8983–8990

Construction of Ti₃C₂T_x/WO_x heterostructures on carbon cloth for ultrahigh-mass loading flexible supercapacitor

Zhihu Pan, Chenghao Yang^*, Zhiwu Chen, and Xiaohong Ji^*

South China University of Technology, China

The Ti₃C₂T_xWO_x composites have been grown directly on the flexible carbon cloth (Ti₃C₂T_x/WO_x@CC) by a facile electrochemical deposition method. The existence of Ti₃C₂T_x/WO_x heterointerface plays a key role in achieving high and stable performance by promoting electrons and H⁺ ions diffusion mobility and preventing the peeling off WO_x. The Ti₃C₂T_x/WO_x@CC flexible electrode with an ultrahigh mass loading of 34.9 mg·cm⁻² exhibits a high areal capacitance of 5.73 F·cm⁻² at 5 mA·cm⁻² and excellent rate capability.

8991–8999

Confinement synthesis of bimetallic MOF-derived defect-rich nanofiber electrocatalysts for rechargeable Zn-air battery

Xing Chen¹, Jie Pu², Xuhui Hu¹, Le An¹, Jianjun Jiang^1,*, and Yujun Li^1,*

¹ Northwestern Polytechnical University, China

² Wuhan University, China

Three-dimensional (3D) defect-rich nanofiber electrodes with excellent bifunctional electrocatalytic performance were synthesized. The synergistic effect from the irregular hollow CoFe nanospheres and defect-rich carbon boosts the bifunctional electrocatalytic activity, endowing Zn-air battery with high power density and energy density.

9000–9009

PtCu₃ nanoalloy@porous PWO_x composites with oxygen container function as efficient ORR electrocatalysts advance the power density of room-temperature hydrogen-air fuel cells

Rui Chen¹, Tie Shu², Fengling Zhao¹, Yongfei Li², Xiaotong Yang¹, Jingwei Li², Daliang Zhang², Li-Yong Gan^2,*, Ke Xin Yao^2,*, and Qiang Yuan^1,*

¹ Guizhou University, China

² Chongqing University, China

Porous PtCu₃ nanoalloy@PWO_x composites are employed as efficient oxygen-storing oxygen reduction reaction (ORR) electrocatalysts for practical room-temperature H₂-air fuel cells.

9010–9018

Chemical cross-linking and mechanically reinforced carbon network constructed by graphene boosts potassium ion storage

Chenxu Wang, Ruohan Yu, Wen Luo^*, Wencong Feng, Yuanhao Shen, Nuo Xu, and Liqiang Mai

Wuhan University of Technology, China

A new synthetic strategy by sol–gel with acid etching for chemical cross-linking of graphene sheets was proposed. The obtained carbon network constructed by graphene (CNCG) exhibits remarkable electrical conductivity and mechanical enhancement as high-performance potassium ion battery anode.

9019–9025

Watermelon-like multicore-shell Fe(PO₃)₂@carbon nanocapsule anode to construct an all iron phosphate-based sodium ion battery

Lu Yue¹, Jingyu Zhang¹, Meng Kong¹, Kai Li¹, Wenhui Zhang^1,*, Xiaotian Guo², Mengmeng Xiao¹, Feng Zhang¹, and Huan Pang^2,*

¹ Yancheng Institute of Technology, China

² Yangzhou University, China

A new type of all iron-based phosphate sodium ion battery (SIB) full battery is constructed by combining watermelon-like multicore-shell Fe(PO₃)₂@C nanocapsule anode with FePO₄/MWCNTs as cathode materials, which can output a high power and energy density from 10 to 45 °C.

9026–9037

Unveiling the impact of residual Li conversion and cation ordering on electrochemical performance of Co-free Ni-rich cathodes

Chu Wang¹, Lei Tan¹, Hongling Yi¹, Zixiang Zhao¹, Xiaoli Yi², Youyuan Zhou³, Junchao Zheng², Jiexi Wang², and Lingjun Li^1,*

¹ Changsha University of Science and Technology, China

² Central South University, China

³ Hunan Changyuan Lico Co., Ltd., China

The residual Li can protect cathodes from electrolyte attack by converting to cathode electrolyte interphase (CEI) below 4.3 V and the cation ordering structure impedes lattice collapse at a highly charged state.

9038–9046

Holey graphene oxide-templated construction of nano nickel-based metal–organic framework for highly efficient asymmetric supercapacitor

Hang Wang^1,*, Pengfei Zhao¹, Xingmao Zhang¹, Su Zhang¹, Xiaolong Lu¹, Zhipeng Qiu¹, Kang Ren¹, Zheng Xu¹, Ruxin Yao², Tong Wei^1,*, and Zhuangjun Fan^1,*

¹China University of Petroleum, China

² Shanxi Normal University, China

The designed nano structure of two-dimensional (2D) Ni(BDC) on holey graphene oxide enables rapid mass/charge transport and the obtained Ni(BDC)-HGO30 is favorable for asymmetric supercapacitor application.

9047–9056

Nano biology

Research Articles

Systemic delivery of gemcitabine analogue and STAT3 siRNA promotes antitumor immunity against melanoma

Huan Yan, Zhanyan Liu, Guibin Lin, Fei Gu, Yan Liu, Yuxiao Xu, Xueli Kuang, and Yuan Zhang^*

South China University of Technology, China

Gemcitabine analogue and STAT3 siRNA (siSTAT3) nanoparticles could alleviate myeloid cell-mediated immune suppression and enhance endogenous T-cell mediated antitumor immunity.

9057–9072

A photonanozyme with light-empowered specific peroxidase-mimicking activity

Sili Lin, Wenlong Tan, Pengfei Han, Xu Li, Jinzhao Li, Zhou Nie, and Kun Li^*

Hunan University, China

Light as a direct energy source driving photonanozymatic reactions with H₂O₂ enables TiO₂ photonanozymes to have the peroxidase-like specificity exclusively under illumination. Photogenerated hot charge carriers and the accompanied reactive oxygen species are responsible for light-empowered photonanozymatic activity, while co-substrates are conducive to the formation of the photo-reactive peroxo-oxygen bridge bond between TiO₂ and H₂O₂ that specifically allows the peroxidase-like activity.

9073–9081

Versatile nanocomposite augments high-intensity focused ultrasound for high-efficacy sonodynamic therapy of glioma

Yingyan Zheng^1,2, Dejun She^1,2, Huihui Huang³, Lin Lin², Sunhui Chen², Yiping Lu², Li Liu^2,*, Zhiqing Pang^2,*, and Bo Yin^2,*

¹ First Affiliated Hospital of Fujian Medical University, China

² Fudan University, China

³ Fujian Medical University, China

The high reduction of MnO₂ under the presence of H₂O₂ contributes to tumor microenvironment (TME)-responsive T₁-weighted magnetic resonance imaging (MRI). Under high-intensity focused ultrasound (HIFU) irradiation with MRI guidance, PpIX@MnO₂@BSA (BMP, PpIX = Protoporphyrin IX and BSA = bovine serum albumin) alleviates hypoxic environment by releasing O₂, and further facilitates the generation of toxic reactive oxygen species (ROS) to enhance the suppression of glioma growth, thereby realizing the high-efficacy sonodynamic therapy (SDT).

9082–9091

Boosting SN38-based oral chemotherapy to combine reduction-bioactivated structured lipid-mimetic prodrug with ascorbic acid

Helin Wang, Qi Lu, Yifan Miao, Jiaxuan Song, Mingyang Zhang, Zixuan Wang, Haotian Zhang, Zhonggui He, Chutong Tian^*, and Jin Sun^*

Shenyang Pharmaceutical University, China

A structured lipid-mimetic SN38 prodrug for smart cancer therapy by combination of the high hydrophobic structured lipid-mimetic prodrug structure and disulfide bond was designed. And ascorbic acid (ASC) was co-administrated to further promote the efficient release of SN38 from the prodrug. The combination of structured lipid-mimetic prodrug along with ASC is firstly demonstrated to boost the oral chemotherapy effect of the difficult-for-oral chemotherapeutics.

9092–9104

Sticking-bacteria gel enhancing anti-multidrug-resistant microbial therapy under ultrasound

Ya-Qi Zhu, Wei-Qiang Huang, Guang Chen, Lei Xia, Ye-Zi You^*, and Yue Yu^*

University of Science and Technology of China, China

Inspired by that the mucus in respiratory mucosa could trap bacteria to kill them, here, a new gel that could stick bacteria and inhibit their invasion into normal cell is developed for effectively killing bacteria under ultrasound.

9105–9113

Co-assembly of FeTPP@Fe₃O₄nanoparticles with photo-enhanced catalytic activity for synergistic tumor therapy

Tian Tian, Jianshuai Bao, Jinghan Wang, Jiefei Wang, Yan Ge, Zengyin Li, Shanqing Gao, Zhongqi You, Xiaoyan Yang, Yong Zhong^*, and Feng Bai^*

Henan University, China

Iron(III) tetraphenylporphyrin (FeTPP) and magnetic (Fe₃O₄) composite nanoparticles (FeTPP@Fe₃O₄ NPs) possessing magnetic resonance imaging (MRI) functions were prepared through a one-step microemulsion-assisted co-assembly method. The introduction of Fe₃O₄ nanocrystals (NCs) enhances the disorganized amorphous aggregation of FeTPP monomers, then increases the aggregation-caused quenching (ACQ) of porphyrins, which endowed FeTPP@Fe₃O₄ NPs high photothermal performance and photo-enhanced the Fenton reaction for amplified chemodynamic therapy (CDT).

9114–9124

Cardiomyocyte-targeted anti-inflammatory nano-therapeutics against myocardial ischemia reperfusion (IR) injury

Min Lan¹, Mengying Hou¹, Jing Yan^1,*, Qiurong Deng¹, Ziyin Zhao¹, Shixian Lv¹, Juanjuan Dang¹, Mengyuan Yin¹, Yong Ji^2,*, and Lichen Yin^1,*

¹Soochow University, China

² Wuxi People’s Hospital Affiliated to Nanjing Medical University, China

Cardiomyocyte-targeting and reactive oxygen species (ROS)-ultrasensitive nanocomplexes (NCs) based on mesoporous silica nanoparticles gated with a ROS-degradable polycation (PPTP) were prepared for the co-delivery of siRAGE and Dex toward the anti-inflammatory treatment against myocardial ischemia reperfusion (IR) injury. The NCs efficiently entered cardiomyocytes, and PPTP was sensitively degraded by the over-produced ROS, releasing the siRAGE and Dex to mediate RAGE silencing and cooperative anti-inflammatory effect.

9125–9134

Exosomes derived from human adipose-derived stem cells ameliorate osteoporosis through miR-335-3p/Aplnr axis

Chunhui Sheng¹, Xiaodong Guo¹, Zhuqing Wan¹, Xiaoqiang Bai¹, Hao Liu¹, Xiao Zhang¹, Ping Zhang¹, Yunsong Liu¹, Wenyue Li^2,*, Yongsheng Zhou^1,*, and Longwei Lv^1,*

¹ Peking University School and Hospital of Stomatology, China

² Capital Medical University, China

Exosomes derived from human adipose-derived stem cells (hASCs) cultured in osteogenic induction medium (O-Exos) enhanced the osteogenic differentiation of bone marrow-derived stem cells (BMSCs) from ovariectomy osteoporotic mice and inhibited osteoclastogenesis which resulted in the amelioration of the osteoporotic conditions, and the engineered O-Exos constructed by transfection of miR-335-3p inhibitor into the exosomes showed a better effect. The findings indicated that the ASC-exosome-based therapy brings new possibilities for osteoporosis treatment.

9135–9148

Novel gold nanoparticles targeting somatostatin receptor subtype two with near-infrared light for neuroendocrine tumour therapy

Qichen Chen¹, Zilin Li², Jiangyuan Yu³, Qing Xie³, Haizhen Lu¹, Yiqiao Deng¹, Jinghua Chen¹, Wenjia Zhu¹, Li Huo¹, Yizhou Zhang¹, Wei Song¹, Jianqiang Lan⁴, Jianqiang Cai^1,*, Zhen Huang^1,*, Zixi Wang^2,*, and Hong Zhao^1,*

¹ Chinese Academy of Medical Sciences and Peking Union Medical College, China

²Tsinghua University, China

³ Peking University Cancer Hospital & Institute, China

⁴ Accurate International Biotechnology Co. Ltd., China

This study presented a feasible strategy to construct AuNRs@mSiO₂@DOTA-TATE with excellent physiological stability, somatostatin receptor 2 (SSTR2)-targeting ability, and biocompatibility. Both in vitro and in vivo, AuNRs@mSiO₂@DOTA-TATE was very effective in killing tumours under low-power laser irradiation. In addition, AuNRs@mSiO₂@DOTA-TATE showed little systemic toxicity and no long-term side effects, warranting further explorations of multifunctional nanocomposites for applications in neuroendocrine tumours therapy.

9149–9159

siRNA-functionalized lanthanide nanoparticle enables efficient endosomal escape and cancer treatment

Chanchan Yu^1,2, Kun Li¹, Lin Xu¹, Bo Li¹, Chunhui Li¹, Shuai Guo¹, Ziyue Li¹, Yuquan Zhang¹, Abid Hussain¹, Hong Tan³, Mengyu Zhang³, Yongxiang Zhao^3,*, Yuanyu Huang^1,*, and Xing-Jie Liang^2,*

¹ Beijing Institute of Technology, China

²National Center for Nanoscience and Technology of China, China

³Guangxi Medical University, China

In this work, we explored the basic interaction of the double-stranded small interfering RNA (siRNA) with lanthanide NaGdF₄ nanoparticles (NPs) and discovered that an efficient encapsulation and rapid endosomal escape of siRNA from the endosome/lysosome were achieved by utilizing the dual capacity of siRNA loading and endosomal escape of NaGdF₄ NPs.

9160–9168

Whisker of biphasic calcium phosphate ceramics: Osteo-immunomodulatory behaviors

Jinjie Wu, Cong Feng, Menglu Wang, Hongfeng Wu, Xiangdong Zhu, Xiangfeng Li^*, Xuening Chen^*, and Xingdong Zhang

Sichuan University, China

Biphasic calcium phosphate (BCP)-HW ceramics induced the M2 polarization of macrophages, showing better promoting effect on the osteogenesis of MC3T3-E1 cells through the paracrine pathway and new bone formation in vitro.

9169–9182

NIR-II fluorescence/photoacoustic imaging of ovarian cancer and peritoneal metastasis

Siyu Lu^1,2, Liru Xue¹, Meng Yang³, Jingjing Wang², Yang Li², Yuxin Jiang³, Xuechuan Hong^1,2,4, Mingfu Wu^1,*, and Yuling Xiao^2,5,*

¹ Huazhong University of Science and Technology, China

² Wuhan University, China

³ Chinese Academy of Medical Science and Peking Union Medical College, China

⁴ Tibet University, China

⁵ Shenzhen Institute of Wuhan University, China

H10@follicle-stimulating hormone (FSH) dots have been developed for near-infrared II (NIR-II, 1,000–1,700 nm) fluorescence/photoacoustic imaging of ovarian cancer and peritoneal metastasis.

9183–9191

Biological composite fibers with extraordinary mechanical strength and toughness mediated by multiple intermolecular interacting networks

Sikang Wan^1,2, Wenhao Cheng^1,2, Jingjing Li¹, Fan Wang¹, Xiwen Xing^3,*, Jing Sun^4,*, Hongjie Zhang^1,2,5, and Kai Liu^1,2,5,*

¹ Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, China

² University of Science and Technology of China, China

³Jinan University, China

⁴Ulm University, Germany

⁵ Tsinghua University, China

A versatile molecular engineering strategy is employed to develop robust biosynthetic protein-saccharide composite fibers by internal multiple networks. In stark contrast to the conventional saccharide-based fibers, the lysine-rich biosynthetic proteins significantly enhance saccharide-protein composite fiber’s overall mechanical properties due to their internal multiple networks, offering potential applications for next-generation renewable high-performance bio-composite fibers.

9192–9198

RNA nanostructure transformation into DNA ones

Jiazhen Lyu¹, Shiyu Ma¹, Chong Zhang², and Zhen Huang^1,2,*

¹ Sichuan University, China

² SeNA Research Institute, China

RNA nanostructure can be transformed into DNA ones, by designing and increasing ionic strengths and duplex lengths. Our research strategy opens a new avenue for exploring the structure connection between RNAs and DNAs.

9199–9203

Tumor and dendritic cell dual-targeting nanocarriers maximize the therapeutic potential of IDO1 inhibitor in vivo

Tong Yu, Xiangyu Jin, Fangying Yu, Xiqin Yang, Yingping Zeng, Tingting Meng, Hong Yuan, and Fuqiang Hu^*

Zhejiang University, China

Nanoscale amorphous calcium carbonate (ACC) encapsulating indoximod (IND) was coated with phospholipid (PL) and modified with cancer cell membrane (CCM) (MP/A-IND). By fully utilizing the homologous adhesion proteins and antigenic motifs on CCM, MP/A-IND is capable of infiltrating tumors and actively accumulating in cancer cells and dendritic cells (DCs), as well as hitching a ride on DCs to tumor-draining lymph nodes (TDLNs). Ultimately, through increasing the density of indoleamine-2,3-dioxygenase-1 (IDO1) inhibitors in both tumors and TDLNs, the efficacy of IND is greatly enhanced without the aid of chemotherapeutic drugs, achieving substantial control of tumor growth.

9204–9214

A prodrug nanoplatform via esterification of STING agonist and IDO inhibitor for synergistic cancer immunotherapy

Madiha Zahra Syeda^1,2, Tu Hong¹, Min Zhang², Yanfei Han¹, Xiaoling Zhu¹, Songmin Ying^1,2,*, and Longguang Tang^1,*

¹ The Fourth Affiliated Hospital of Zhejiang University School of Medicine, China

² Zhejiang University School of Medicine, China

Prodrug (MSA-NLG) was synthesized and encapsulated with 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000] (DSPE-mPEG2K) to attain prodrug nanoparticles (prodrug NPs) (a), for synergistic cancer immunotherapy (b).

9215–9222

Integrating Au and ZnO nanoparticles onto graphene nanosheet for enhanced sonodynamic therapy

Fei Wang, Boyu Wang, Wei You, Guang Chen^*, and Ye-Zi You^*

University of Science and Technology of China, China

Au-rGO-ZnO@PVP, a promising sonosensitizer, could generate oxygen to mitigate the hypoxic tumor microenvironment and reactive oxygen species (ROS) to kill tumor cell under ultrasound irradiation.

9223–9233

Deciphering the role of monosaccharides during phage infection of Staphylococcus aureus

Baptiste Arbez, Marion Gardette, Christophe Gantzer, Neus Vilà, Isabelle Bertrand, and Sofiane El-Kirat-Chatel^*

Université de Lorraine, France

Staphylococcus aureus cell wall was deciphered using a phage-decorated atomic force spectroscopy tip in order to identify major receptors involved in phage adhesion and infection of host cell.

9234–9242

Rod-like mesoporous silica nanoparticles facilitate oral drug delivery via enhanced permeation and retention effect in mucus

Wenjuan Liu, Luyu Zhang, Zirong Dong, Kaiheng Liu, Haisheng He, Yi Lu, Wei Wu, and Jianping Qi^*

Fudan University, China

Oral absorption could be improved by the enhanced permeation and retention effect in mucus caused by rod-like nanoparticles.

9243–9252

Electrically controlled mRNA delivery using a polypyrrole-graphene oxide hybrid film to promote osteogenic differentiation of human mesenchymal stem cells

Huijung Kim¹, Kübra Solak², Yoojoong Han¹, Yeon-Woo Cho¹, Kyeong-Mo Koo¹, Chang-Dae Kim¹, Zhengtang Luo³, Hyungbin Son¹, Hyung-Ryong Kim^4,*, Ahmet Mavi^2,*, and Tae-Hyung Kim^1,*

¹ Chung-Ang University, Republic of Korea

² Atatürk University, Turkey

³ Hong Kong University of Science and Technology, Hong Kong, China

⁴ Jeonbuk National University, Republic of Korea

An mRNA-loaded polypyrrole-graphene oxide composite was electrochemically fabricated on the indium tin oxide substrate. Under electrical stimulation, total mRNAs isolated from osteoblasts were delivered into the mesenchymal stem cells and enhanced osteogenic differentiation.

9253–9263

Nanovoid-confinement and click-activated nanoreactor for synchronous delivery of prodrug pairs and precise photodynamic therapy

Peng Wang, Fang Zhou, Xia Yin^*, Qingji Xie, Guosheng Song^*, and Xiao-Bing Zhang

Hunan University, China

The nanovoid-confinement and click-activated (NCCA) nanoreactor is de novo developed for overcoming the space-time dislocation of bioorthogonal reagents. The NCCA nanoreactor utilized the nanoconfined bioorthogonal reactions in defined tetrazine-based covalent organic framework (COF) cages to boost the collision probability of bioorthogonal prodrug with tetrazine triggers, resulting in higher-efficiency photodynamic therapy (PDT) in vivo.

9264–9273

Green functional carbon dots derived from herbal medicine ameliorate blood–brain barrier permeability following traumatic brain injury

Weikang Luo¹, Lianglin Zhang¹, Xuexuan Li¹, Jun Zheng¹, Quan Chen¹, Zhaoyu Yang¹, Menghan Cheng¹, Yao Chen¹, Yao Wu¹, Wei Zhang², Tao Tang¹, and Yang Wang^1,*

¹Central South University, China

²Hunan University of Chinese Medicine, China

Green functional carbon dots derived from herbal medicine (TH-CDs) were synthesized. TH-CDs can ameliorate blood–brain barrier permeability following traumatic brain injury, which may be due to the electrostatic interaction between TH-CDs and claudin 5.

9274–9285

Hydroxyapatite nanoparticles drive the potency of Toll-like receptor 9 agonist for amplified innate and adaptive immune response

Qin Zeng^*, Ruiqi Wang, Yuchen Hua, Hongfeng Wu, Xuening Chen, You-cai Xiao, Qiang Ao, Xiangdong Zhu^*, and Xingdong Zhang

Sichuan University, China

Hydroxyapatite nanoparticles (HANPs) modulate the intracellular calcium level, mitochondrial function in support of the synthesis of adenosine triphosphate (ATP), the production of nicotinamide adenine dinucleotide (NAD), and reactive oxygen species (ROS) in the presence or absence of CpG, a TLR9 agonist. Further, HANPs enhance the secretion of immunostimulatory cytokines (TNFα or IL-6) while reducing the production of immunosuppressive cytokine (IL-10) in macrophages in response to CpG. In vaccinated mice model, vaccination with a mixture of CpG, HANPs, and OVA, a model antigen, allowed the development of a long-lasting balanced humoral immunity in mice.

9286–9297

Antibacterial mechanism and transcriptomic analysis of a near-infrared triggered upconversion nanoparticles@AgBiS₂for synergetic bacteria-infected therapy

Shi Chen¹, Zhaoyou Chu², Limian Cao¹, Lingling Xu^2,*, Qianqian Jin², Nian Liu¹, Benjin Chen², Ming Fang¹, Wanni Wang², Haisheng Qian^2,*, and Min Shao^1,*

¹ The First Affiliated Hospital of Anhui Medical University, China

² Anhui Medical University, China

Upconversion nanoparticles@AgBiS₂ were successfully prepared, which showed enhanced photothermal conversion performance and good reactive oxygen species production ability for combined photothermal–photodynamic therapy of methicillin-resistant Staphylococcus aureus (MRSA) infection.

9298–9308

Nano detection

Research Articles

Ion compaction effect in hollow FePt nanochains with ultrathin shell under low energy ion irradiation

Jialong Liu^1,*, Jianguo Wu^2,3, Long Cheng⁴, Suyun Niu⁵, Zhiqiang Wang⁶, Mengyuan Zhu⁷, Jingyan Zhang⁷, Shouguo Wang^7,*, and Wei Wang^1,*

¹ Beijing University of Chemical Technology, China

² Institute of Geology and Geophysics, Chinese Academy of Sciences, China

³ Innovation Academy for Earth Science, Chinese Academy of Sciences, China

⁴ Beihang University, China

⁵ Beijing Hangxing Machinery Manufacturing Co., Ltd., China

⁶ Beijing Smart-chip Microelectronics Technology Co., Ltd., China

⁷University of Science and Technology Beijing, China

The compaction effect has been observed in hollow FePt nanochains under low energy ions irradiation. The volume and microstructure of hollow architecture can be manipulated by ions.

9309–9318

In situ decorating the surface and interlayer of montmorillonite with Co_0.5Ni_0.5Fe₂O₄ nanoparticles: A sustainable, biocompatible colorimetric platform for H₂O₂ and acetylcholine

Xixi Zhu¹, Hongyu Li¹, Tao Wu¹, Hui Zhao¹, Kaili Wu², Wenjing Xu³, Fengjuan Qin³, Wenxing Chen^3,*, Jinlong Zheng^2,*, and Qingyun Liu^1,*

¹ Shandong University of Science and Technology, China

² University of Science and Technology Beijing, China

³ Beijing Institute of Technology, China

A facile and efficient biosensor for acetylcholine (ACh) was established based on the proxidase-like activity of Co_0.5Ni_0.5Fe₂O₄-MMT originated from its catalytic decomposition of H₂O₂ into ·OH and ·O₂^–.

9319–9326

Natural interface-mediated self-assembly of graphene-isolated-nanocrystals for plasmonic arrays construction and personalized information acquisition

Shen Wang¹, Tianhuan Peng¹, Shengkai Li¹, Linlin Wang¹, Liang Zhang¹, Zhiwei Yin¹, Xin Xia¹, Xinqi Cai¹, Xiaoxu Cao¹, Long Chen², Zhuo Chen^1,*, and Weihong Tan^1,3,4

¹ Hunan University, China

² University of Macau, Macau, China

³ Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, China

⁴ Shanghai Jiao Tong University, China

The naturally accessible interface of latent fingerprints (LFPs) offers a platform for localized self-assembly of graphene isolated Au nanocrystals (GIANs). The densely packed GIANs arrays on the fingerprint ridge are further used for personalized information acquisition, including high resolution imaging-mediated identification, as well as label-free, non-invasive acquisition of molecular information about residues in LFPs.

9327–9333

AIEgen containing side-chain liquid crystalline polymers: Photoluminecence or photothermal, which dominate?

Lei Tao¹, He-Lou Xie^2,*, Xin Qi¹, Jun Song¹, Hong Xin^1,*, and Zhen-Qiang Yu^1,*

¹ Shenzhen University, China

²Xiangtan University, China

A series of α-dicyanodistyrylbenzene (a-DCS) containing luminescent liquid crystalline polymers (LLCPs) with polynorbornene as main chain are successfully prepared via ring-opening metathesis polymerization to reveal the relationship between photoluminescence (PL) and photothermal behavior. The liquid crystal (LC) phase structure, molecular packing model, photoluminescence behavior, lifetime, and photothermal effect of the resultant polymers are strongly dependent on the alkyl tail length and the photothermal effect plays a dominant role during the excited states energy decay.

9334–9340

Nano device

Research Articles

A waterproof and breathable Cotton/rGO/CNT composite for constructing a layer-by-layer structured multifunctional flexible sensor

Feifei Yin¹, Yunjian Guo¹, Hao Li¹, Wenjing Yue¹, Chunwei Zhang¹, Duo Chen³, Wei Geng⁴, Yang Li^1,*, Song Gao^1,*, and Guozhen Shen^2,*

¹ University of Jinan, China

² Beijing Institute of Technology, China

³ Qilu University of Technology (Shandong Academy of Science), China

⁴ Shandong Provincial Maternal and Child Health Care Hospital, China

A waterproof and breathable Cotton/reduced graphene oxide (rGO)/carbon nanotube (CNT) composite is proposed and reported to achieve a layer-by-layer structured multifunctional flexible sensor, enabling the high-sensitivity detection of pressure and temperature stimulus. In light of the superior pressure and temperature sensing capability, an array consisting of multifunctional flexible sensors further demonstrates the feasibility in perceiving and mapping pressure and temperature information of contact objects.

9341–9351

Multimode human–machine interface using a single-channel and patterned triboelectric sensor

Zhiping Feng¹, Qiang He¹, Xue Wang¹, Jing Liu¹, Jing Qiu¹, Yufen Wu^2,*, and Jin Yang^1,*

¹ Chongqing University, China

² Chongqing Normal University, China

Human–machine interfaces play a crucial role in artificial intelligence. Here, a triboelectric interface by encoding voltage signals of opposite polarities is proposed for human–machine interfaces (HMIs). Combining the polarity and number of voltage output peak as coding information, it greatly reduces the size of the device and provides a new coding strategy. The interface attached to the ring successfully realizes intelligent control.

9352–9358

Highly sensitive and stable β-Ga₂O₃ DUV phototransistor with local back-gate structure and its neuromorphic application

Xiao-Xi Li¹, Guang Zeng¹, Yu-Chun Li¹, Qiu-Jun Yu¹, Meng-Yang Liu¹, Li-Yuan Zhu¹, Wenjun Liu^1,*, Ying-Guo Yang^1,2,*, David Wei Zhang¹, and Hong-Liang Lu^1,*

¹ Fudan University, China

² Shanghai Advanced Research Institute & Shanghai Institute of Applied Physics, Chinese Academy of Sciences, China

The fabricated β-Ga₂O₃ phototransistor with local back-gate structure exhibits a high responsivity of 1.01 × 10⁷ A/W. The first-principles calculations reveal the decent stability of β-Ga₂O₃ nanosheet against oxidation and humidity without significant performance degradations.

9359–9367

Ultra-stable and color-tunable manganese ions doped lead-free cesium zinc halides nanocrystals in glasses for light-emitting applications

Kai Li¹, Ying Ye¹, Wenchao Zhang¹, Yao Zhou¹, Yudong Zhang¹, Shisheng Lin^2,3, Hang Lin^2,3, Jian Ruan¹, and Chao Liu^1,*

¹ Wuhan University of Technology, China

² Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, China

³ Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, China

Lead-free Mn²⁺:Cs₂ZnX₄ nanocrystals with tunable photoluminescence are precipitated in glasses. These Mn²⁺:Cs₂ZnX₄ nanocrystals embedded glasses show good thermal, chemical, and photo-stabilities, promising for applications in light-emitting devices.

9368–9376

Highly anisotropic thermal conductivity of few-layer CrOCl for efficient heat dissipation in graphene device

Xiaoming Zheng^1,4, Yuehua Wei², Zhenhua Wei², Wei Luo², Xiao Guo³, Xiangzhe Zhang², Jinxin Liu¹, Yangbo Chen¹, Gang Peng², Weiwei Cai^1,4, Shiqiao Qin², Han Huang^3,*, Chuyun Deng^2,*, and Xueao Zhang^1,4,*

¹ Xiamen University, China

² National University of Defense Technology, China

³ Central South University, China

⁴ Jiujiang Research Institute of Xiamen University, China

The layered CrOCl with anisotropic thermal conductivity can function as a heat sink for directional thermal dissipation in nanodevices.

9377–9385

Controllable design of high-efficiency triboelectric materials by functionalized metal–organic frameworks with a large electron-withdrawing functional group

Rongmei Wen^1,*, Rui Feng³, Bo Zhao¹, Jiangfeng Song¹, Liming Fan^1,*, and Junyi Zhai^2,*

¹ North University of China, China

² Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, China

³ Nankai University, China

Isostructural UiO-66-X (X = H, NH₂, NO₂, and Br) films are chosen as triboelectric materials to investigate the underlying relationships between different functional groups and the triboelectric performance of triboelectric nanogenerator (TENG). This work guides us on how to choose and design high-efficiency triboelectric material metal–organic frameworks to enhance the output performance of TENG.

9386–9391

Ultrathin layered double hydroxide nanosheets prepared by original precursor method for photoelectrochemical photodetectors

Yu Wang¹, Fulai Zhao¹, Yiyu Feng^1,2,3,4, and Wei Feng^1,2,3,*

¹ Tianjin University, China

² Tianjin Key Laboratory of Composite and Functional Materials, China

³ Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, China

⁴ Zhengzhou University, China

Two novel ultrathin layered double hydroxides (LDHs, Ca-In and Ca-Al LDH) nanosheets are prepared through the original precursor method, and demonstrate a uniform thickness distribution, micron-level lateral sizes, and moderate bandgap, broad light absorption range, hydrophilicity and stability, thus, Ca-In and Ca-Al LDH nanosheets are applied for the first time in photoelectrochemical photodetectors, realizing a wide range of light detection from ultraviolet to visible light. Moreover, the fabricated photodetectors exhibit excellent cycle stability, and the average photocurrent density shows no reduction after 70 days.

9392–9401

Highly-efficient thermoelectric-driven light-emitting diodes based on colloidal quantum dots

Xing Lin, Xingliang Dai, Zikang Ye, Yufei Shu, Zixuan Song, and Xiaogang Peng^*

Zhejiang University, China

Efficient thermal-electrical driven light-emitting diodes can be constructed based on solution-processed colloidal quantum dots (QLEDs). The device can achieve its peak internal power conversion efficiency (IPE ~ 90%) and remain high level within the current density range of 0.5–100 mA/cm² which matches the demand of display and lighting applications. Micro-LEDs based on epitaxially grown quantum well (QW-LEDs) exhibit very limited power conversion efficiency in the same current density range due to leakage current and/or Shockley–Read–Hall (SRH) nonradiative recombination.

9402–9409

Nano unit

Review Article

Advances in core–shell engineering of carbon-based composites for electromagnetic wave absorption

Lixue Gai, Honghong Zhao, Fengyuan Wang, Pan Wang, Yonglei Liu, Xijiang Han*, and Yunchen Du^*

Harbin Institute of Technology, China

Herein, the research progress in core–shell carbon-based electromagnetic wave absorption materials is reviewed, with a special focus on the advances of built-in carbon cores with diverse morphologies, as well as built-out carbon shells with positively protective effect. Furthermore, the future challenge and perspectives on the development of core–shell carbon-based composites in electromagnetic absorption field are also discussed and predicted.

9410–9439

Research Articles

Nanosheet-coated synthetic wood with enhanced flame-retardancy by vacuum-assisted sonocoating technique

Zhi-Yuan Ma, Xiao-Feng Pan, Ze-Lai Xu, Zhi-Long Yu, Bing Qin, Yi-Chen Yin, Yu-Cheng Gao, and Shu-Hong Yu^*

University of Science and Technology of China, China

A vacuum-assisted sonocoating approach has been proposed to modify the artificial wood with a rectorite nano-coating on every internal channel wall. The nanosheets can go much deeper into the channels with the help of vacuum and sonication, which promote the infiltration of nanosheets solution into the channels. The nanosheet coating enables the formation of a thick ash layer and a char layer to endure the fire erosion for at least 10 min without any structural collapse.

9440–9446

Chirally assembled plasmonic metamolecules from intrinsically chiral nanoparticles

Jiahao Pan^1,2, Xiaoyao Wang^1,2, Jinjin Zhang^1,2, Qin Zhang^2,3, Qiangbin Wang^1,2,4, and Chao Zhou^1,2,*

¹ University of Science and Technology of China, China

² Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, China

³ Soochow University, China

⁴ University of Chinese Academy of Sciences, China

Plasmonic nanorods with intrinsic chirality are chirally assembled into dimeric plasmonic metamolecules with intriguing plasmonic circular dichroism.

9447–9453

Calcination-controlled fabrication of carbon dots@zeolite composites with multicolor fluorescence and phosphorescence

Siyu Zong, Bolun Wang, Xin Yin, Wenyan Ma, Jiani Zhang, and Jiyang Li^*

Jilin University, China

A universal calcination strategy based on the in-situ hydrothermal synthesis is presented to prepare multicolor carbon dots (CDs)-based composites.

9454–9460

Toroidal dipole-modulated dipole-dipole double-resonance in colloidal gold rod-cup nanocrystals for improved SERS and second-harmonic generation

Hao-Sen Kang¹, Wen-Qin Zhao¹, Tao Zhou², Liang Ma^1,*, Da-Jie Yang^3,*, Xiang-Bai Chen¹, Si-Jing Ding², and Qu-Quan Wang^4,*

¹ Wuhan Institute of Technology, China

² China University of Geosciences (Wuhan), China

³ North China Electric Power University, China

⁴ Southern University of Science and Technology, China

High-yield, stable, and monodisperse Au rod-cup nanocrystals in which Au nanocups are embedded on one or two ends of Au nanorods are successfully prepared for the first time. The Au rod-cup nanocrystals possess transverse and longitudinal electric dipole, magnetic dipole, toroidal dipole modulated longitudinal electric dipole resonances, largely-improved surface-enhanced Raman spectroscopy (SERS), and double-resonantly enhanced second-harmonic generation.

9461–9469

A novel method for the synthesis of carbon dots assisted by free radicals

Xinyue Zhou, Kebing Yi, Yeling Yang, Guohua Xie^*, Xinghu Ji^*, and Zhike He^*

Wuhan University, China

Free radicals assisted synthesis of carbon dots for white electroluminescence (white carbon dots (WCD)) and cell staining (red CDs (RCD2)).

9470–9478

Large-scale synthesis of fluorine-free carbonyl iron-organic silicon hydrophobic absorbers with long term corrosion protection property

Wei Tian¹, Jinyao Li¹, Yifan Liu¹, Longjiang Deng^1,*, Yang Guo^2,*, and Xian Jian^1,*

¹ University of Electronic Science and Technology of China, China

² Panzhihua University, China

Carbonyl iron (CI)@SiO₂/1,1,1,3,3,3-hexamethyl disilazane (HMDS) hybrid exhibits excellent microwave absorption and long-term corrosion protection properties, largely due to the extraordinary wave-transparent and shielding ability of hydrophobic protective layer.

9479–9491

Heat conduction of multilayer nanostructures with consideration of coherent and incoherent phonon transport

Bin Liu¹, Yangyu Guo², Vladimir I. Khvesyuk¹, Alexander A. Barinov¹, and Moran Wang^3,*

¹ Bauman Moscow State Technical University, Russia

² Université de Lyon, France

³ Tsinghua University, China

Coherent thermal transport in multilayer structures is investigated within the framework of the continuum model. By further introducing the incoherence of phonons, the classical minimum thermal conductivity is reproduced.

9492–9497

A multifunctional cholesterol-free liposomal platform based on protopanaxadiol for alopecia therapy

Xuefei Zhang^1,2, Shuxuan Li¹, Yating Dong¹, Hehui Rong¹, Junke Zhao¹, and Haiyan Hu^1,*

¹ Sun Yat-sen University, China

² West Yunnan University of Applied Sciences, China

Multifunctional cholesterol-free liposomes were prepared using protopanaxadiol (PPD) as fluidity buffer instead of cholesterol to avoid the potential biosynthesis of testosterone which may potentiate hair loss. The protopanaxadiol-based liposomes (PPD-Lip) could accelerate hair regeneration in vitro and in vivo by promoting proliferation, migration, gene expression of dermal papilla cells, and angiogenesis.

9498–9510

Enhancing electrical conductivity of single-atom doped Co₃O₄ nanosheet arrays at grain boundary by phosphor doping strategy for efficient water splitting

Yaohang Gu¹, Xuanyu Wang¹, Ateer Bao¹, Liang Dong³, Xiaoyan Zhang^1,3, Haijun Pan^3,*, Wenquan Cui^2,*, and Xiwei Qi^2,*

¹ Northeastern University, China

² North China of Science and Technology, China

³ Northeastern University at Qinhuangdao, China

A phosphor doped single atom with Co₃O₄ supported bifunctional electrocatalyst was fabricated (P-doped Rh SAC-Co₃O₄). P-doped Rh SAC-Coo₃O₄ requires only 1.77 V to reach the current density of 50 mA·cm⁻² for overall water splitting. The phosphor doping strategy increased the electrical conductivity with almost 2 orders of magnitude. The grain boundary is the main conductive area for P-doped Rh SAC-Co₃O₄ where the elevated conductivity originates.

9511–9519

Robust double-layered ANF/MXene-PEDOT:PSS Janus films with excellent multi-source driven heating and electromagnetic interference shielding properties

Bing Zhou, Jianzhou Song, Bo Wang, Yuezhan Feng^*, Chuntai Liu^*, and Changyu Shen

Zhengzhou University, China

Multifunctional aramid nanofiber (ANF)/MXene-poly(3,4-ethyl-enedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) films with double-layered Janus structure exhibited excellent comprehensive properties, including hydrophobicity, electrical conductivity, electromagnetic interference (EMI) shielding, and mechanical and multi-source driven heating properties, which should be useful for preparing advanced electronic components in future.

9520–9530

Multi-hierarchical flexible composites towards superior fire safety and electromagnetic interference shielding

Kexin Chen¹, Miao Liu¹, Yongqian Shi^1,*, Hengrui Wang¹, Libi Fu¹, Yuezhan Feng², and Pingan Song³

¹ Fuzhou University, China

² Zhengzhou University, China

³ University of Southern Queensland, Australia

Multi-hierarchical flexible thermoplastic polyurethane (TPU)/CAPP/MSCF/MXene systems were successfully fabricated by a novel air-assisted thermocompression. The obtained TPU composites integrate superior fire safety and electromagnetic interference (EMI) shielding properties.

9531–9543

In-situ doping nickel single atoms in two-dimensional MXenes analogue support for room temperature NO₂ sensing

Weiming Chen^1,2, Peipei Li^1,2, Jia Yu^1,2, Peixin Cui³, Xiaohu Yu^4,*, Weiguo Song^1,2,*, and Changyan Cao^1,2,*

¹ Institute of Chemistry, Chinese Academy of Sciences, China

² University of Chinese Academy of Sciences, China

³ Institute of Soil Science, Chinese Academy of Sciences, China

⁴Shaanxi University of Technology, China

Through a NiCl₂ molten salt etching method, Ni single atoms could be in-situ doped in the lattice of MXenes analogue support, resulting in much larger charge transfer from Ni atoms to adjacent Ti atoms, and thus increasing the electronic density of these Ti atoms for NO₂ sensing at room temperature.

9544–9553

Semiconductor

Review Article

Two-dimensional molecular crystalline semiconductors towards advanced organic optoelectronics

Xuemei Dong¹, Heshan Zhang¹, Yinxiang Li^1,*, Bin Liu¹, Keyuan Pan¹, Yijie Nie¹, Mengna Yu², Mustafa Eginligil¹, Juqing Liu^1,*, and Wei Huang^1,2,3,*

¹ Nanjing Tech University (Nanjing Tech), China

² Nanjing University of Posts & Telecommunications, China

³ Northwestern Polytechnical University, China

This review focuses on molecular building block design, preparation technology as well as their recent advances in optoelectronic devices of two-dimensional molecular crystalline semiconductors (2D-MCSs).

9554–9572

Research Articles

Chiral CdSe/CdS quantum dot (in rod)-light-emitting diodes with circularly polarized electroluminescence

Tianwei Duan¹, Jing Ai², Sujie Chen¹, Gufeng He¹, Xiaojun Guo^1,*, Lu Han^2,*, Shunai Che^1,2, and Yingying Duan^2,*

¹ Shanghai Jiao Tong University, China

² Tongji University, China

The chiral quantum dot (in rod)-light-emitting diodes were fabricated through spin-coating evaporation of chiral CdSe/CdS quantum rods as an emitting layer, exhibiting right-handed circularly polarized light emission at 600 nm due to the filtration effects as a result of the circular Bragg resonance by quasi-photonic crystal structures.

9573–9577

Reduction in thermal conductivity of monolayer WS₂ caused by substrate effect

Yufeng Zhang, Qian Lv, Aoran Fan, Lingxiao Yu, Haidong Wang, Weigang Ma, Ruitao Lv^*, and Xing Zhang^*

Tsinghua University, China

A significant reduction in thermal conductivity was observed in supported monolayer WS₂ at 200–400 K by dual-wavelength flash Raman method. The molecular dynamics simulation and Raman study mutually demonstrated the suppression of acoustic phonons and the peculiar behavior of optical phonons induced by substrate effect.

9578–9587

Observation of interlayer excitons in trilayer type-II transition metal dichalcogenide heterostructures

Biao Wu¹, Haihong Zheng¹, Junnan Ding¹, Yunpeng Wang¹, Zongwen Liu², and Yanping Liu^1,3,*

¹ Central South University, China

² The University of Sydney, Australia

³ Shenzhen Research Institute of Central South University, China

We successfully observed the interlayer excitons in the trilayer type-II heterostructure and confirmed the source of the interlayer excitons.

9588–9594

Synthesis

Review Articles

One-dimensional metallic, magnetic, and dielectric nanomaterials-based composites for electromagnetic wave interference shielding

Ya Cheng, Wendong Zhu, Xiaofeng Lu^*, and Ce Wang^*

Jilin University, China

In this review, we focus on the electromagnetic wave interference (EMI) shielding membrane- or aerogel/sponge-like composite, including one-dimensional (1D) metallic, magnetic, and dielectric nanomaterials as EMI fillers. Correspondingly, the fabricated routes, shielding performance, and attenuated mechanism of 1D metallic, magnetic, and dielectric filler-based composites are summarized.

9595–9613

Hydrogel-based composites beyond the porous architectures for electromagnetic interference shielding

Yunfei Yang¹, Mingrui Han¹, Wei Liu^1,2, Na Wu^3,*, and Jiurong Liu^1,*

¹ Shandong University, China

² Shenzhen research institute of Shandong University, China

³ ETH Zurich, Switzerland

In this review, we summarized the hydrogel-based composites for electromagnetic interference (EMI) shielding. The preparation process, research progress, as well as the multifunctionalities of the hydrogel-based EMI shields were introduced. The importance of pore structure design and preparation process of biomimetic aligned porous architectures were also emphasized to provide a reference for hydrogel-based EMI shields.

9614–9630

Research Articles

A top–down strategy to realize the synthesis of small-sized L1₀-platinum-based intermetallic compounds for selective hydrogenation

Yu Jin¹, Guomian Ren², Yonggang Feng³, Shize Geng³, Ling Li¹, Xing Zhu¹, Jun Guo¹, Qi Shao¹, Yong Xu^2,*, Xiaoqing Huang^3,*, and Jianmei Lu^1,*

¹ Soochow University, China

² Guangdong University of Technology, China

³ Xiamen University, China

We have demonstrated a facile top–down strategy for synthesizing small-sized L1₀-PtM intermetallic compounds (IMCs), which has been validated by the generations of various binary, ternary, quaternary, quinary, and senary Pt-based IMCs with L1₀ structure. The obtained IMCs exhibit high stability against to high temperature (700 °C) and excellent selectivity towards 4-nitrophenylacetylene hydrogenation.

9631–9638

Yb- and Er concentration dependence of the upconversion luminescence of highly doped NaYF₄:Yb,Er/NaYF₄:Lu core/shell nanocrystals prepared by a water-free synthesis

Christian Würth¹, Bettina Grauel¹, Monika Pons¹, Florian Frenzel¹, Philipp Rissiek², Kerstin Rücker¹, Markus Haase^1,*, and Ute Resch-Genger^1,*

¹ Federal Institute for Materials Research and Testing (BAM), Germany

² Universität Osnabrück, Germany

Absolute upconversion luminescence (UCL) measurements of highly doped NaYF₄:Yb,Er/NaYF₄:Lu core/shell nanocrystals prepared by an elaborate water-free synthesis reveal that high Yb³⁺ concentrations of up to 98% barely reduce the record quantum yield of ~ 9% for an Er³⁺ concentration of 2% and present a very effective tool to boost particle brightness. Increasing the Er³⁺ concentration to 40% leads to a 7-fold decrease in UCL for heavily Yb³⁺-doped nanocrystals, yet this reduction in UCL can be compensated by high excitation power densities.

9639–9646

Microreactor platform for continuous synthesis of electronic doped quantum dots

Yuxi Li¹, Yanbin Li², Xinyuan Li^1,*, Tailei Hou¹, Chen Qiao¹, Yunpeng Tai¹, Xiaole Gu¹, Di Zhao¹, Le Sang^1,*, and Jiatao Zhang^1,*

¹ Beijing Institute of Technology, China

² Beijing University of Chemical Technology, China

Electronic doped quantum dots were continuously synthesized using microreactor platform by cation exchange reaction. The kinetics of reactions were mediated by varying liquid flow rates, achieving quantum dots with enhanced optoelectronic properties.

9647–9653

Silicon-based epitaxial ferroelectric memristor for high temperature operation in self-assembled vertically aligned BaTiO₃-CeO₂ films

Xiaobing Yan^1,*, Hongwei Yan¹, Gongjie Liu¹, Jianhui Zhao^1,*, Zhen Zhao¹, Hong Wang¹, Haidong He¹, Mengmeng Hao¹, Zhaohua Li¹, Lei Wang¹, Wei Wang¹, Zixuan Jian¹, Jiaxin Li¹, and Jingsheng Chen^2,*

¹ Hebei University, China

² National University of Singapore, Singapore

The ferroelectric memristors based self-assembled vertically aligned nano-composites BaTiO₃-CeO₂ on silicon could increase the Curie temperatures to stabilize the performance of ferroelectric memristor due to higher in-plane compressive strain. In addition, this device not only mimics the artificial synaptic function, but also has up to 86.78% digits recognition ability in a single-layer perceptron model.

9654–9662

Theory

Research Articles

Single-atom catalysts modified by molecular groups for electrochemical nitrogen reduction

Zengxi Wei¹, Yuchang Liu¹, Hongjie Liu¹, Shaopeng Wang^1,2,3, Minchen Hou⁴, Liwei Wang^1,2,3,*, Dong Zhai⁵, Shuangliang Zhao¹, Kefu Yu^1,3, and Shaolong Zhang^4,*

¹ Guangxi University, China

² Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, China

³ Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China

⁴ Shenzhen University, China

⁵ Shandong University, China

We have screened a series of transition metals single atom catalysts (SACs) in the substrate of g-C₃N₄ for electrochemical nitrogen reduction reaction (eNRR). The theoretical results exhibited that the W-based SACs can be as a candidate for eNRR.

9663–9669

Dry reforming of methane on doped Ni nanoparticles: Feature-assisted optimizations and ranking of doping metals for direct activations of CH₄ and CO₂

Shiru Lin, Jean-Baptiste Tristan, Yang Wang, and Junwei Lucas Bao^*

Boston College, USA

We developed both a regression model and a ranking model for the prediction of optimal Ni-based bimetallic catalysts for dry reforming of methane (DRM), based on first-principle mechanistic investigations on direct CH₄ and CO₂ activations as well as coke formation.