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Nano-Micro Letters 2025年第1期17卷 135-159页

作者： Zhengqing Fan Ruimin Li Xin Zhang wanyu zhao Zhenghui Pan Xiaowei Yang School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Rechargeable magnesium batteries(RMBs)have been considered a promising“post lithium-ion battery”system to meet the rapidly increasing demand of the emerging electric vehicle and grid energy storage ***,the sluggish diffusion kinetics of bivalent Mg^(2+)in the host material,related to the strong Coulomb effect between Mg^(2+)and host anion lattices,hinders their further development toward practical *** engineering,regarded as an effective strategy to break through the slow migration puzzle,has been validated in various cathode materials for *** this review,we first thoroughly understand the intrinsic mechanism of Mg^(2+)diffusion in cathode materials,from which the key factors affecting ion diffusion are further ***,the positive effects of purposely introduced defects,including vacancy and doping,and the corresponding strategies for introducing various defects are *** applications of defect engineering in cathode materials for RMBs with advanced electrochemical properties are also ***,the existing challenges and future perspectives of defect engineering in cathode materials for the overall high-performance RMBs are described.

关键词： Rechargeable magnesium battery Sluggish diffusion kinetic Defect engineering Cathode materials Ion migration

2D Materials Boost Advanced Zn Anodes:Principles,Advances,and Challenges

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Nano-Micro Letters 2023年第4期15卷 1-22页

作者： Songhe Zheng wanyu zhao Jianping Chen Xiaoli zhao Zhenghui Pan Xiaowei Yang School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Aqueous zinc-ion battery(ZIB)featuring with high safety,low cost,environmentally friendly,and high energy density is one of the most promising systems for large-scale energy storage *** extensive research progress made in developing high-performance cathodes,the Zn anode issues,such as Zn dendrites,corrosion,and hydrogen evolution,have been observed to shorten ZIB’s lifespan seriously,thus restricting their practical *** advanced Zn anodes based on two-dimensional(2D)materials are widely investigated to address these *** atomic thickness,2D materials possess ultrahigh specific surface area,much exposed active sites,superior mechanical strength and flexibility,and unique electrical properties,which confirm to be a promising alternative anode material for *** review aims to boost rational design strategies of 2D materials for practical application of ZIB by combining the fundamental principle and research ***,the fundamental principles of 2D materials against the drawbacks of Zn anode are ***,the designed strategies of several typical 2D materials for stable Zn anodes are comprehensively ***,perspectives on the future development of advanced Zn anodes by taking advantage of these unique properties of 2D materials are proposed.

关键词： Zinc-ion battery Large-scale energy storage application Zn anode Lifespan 2D materials

Facile synthesis of yolk-shell Ni@void@SnO2（Ni3Sn2） ternary composites via galvanic replacement/Kirkendall effect and their enhanced microwave absorption properties

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Nano Research 2017年第1期10卷 331-343页

作者： Biao zhao Xiaoqin Guo wanyu zhao Jiushuai Deng Bingbing Fan Gang Shao Zhongyi Bai Rui Zhang Provincial Key Laboratory of Aviation Materials and Application Technology Zhengzhou University of Aeronautics Zhengzhou 450046 China School of Mechatronics Engineering Zhengzhou University of Aeronautics Zhengzhou 450046 China School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Faculty of Land Resource Engineering Kunming University of Science and Technology Kunming 650093 China

Yolk-shell ternary composites composed of a Ni sphere core and a SnO2（Ni3Sn2） shell were successfully prepared by a facile two-step method. The size, morphology, microstructure, and phase purity of the resulting composites were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy （TEM）, high-resolution TEM, selected-area electron diffraction, and powder X-ray diffraction. The core sizes, interstitial void volumes, and constituents of the yolk-shell structures varied by varying the reaction time. A mechanism based on the time-dependent experiments was proposed for the formation of the yolk-shell structures. The yolk-shell structures were formed by a synergistic combination of an etching reaction, a galvanic replacement reaction, and the Kirkendall effect. The yolk-shell ternary SnO2 （Ni3Sn2）@Ni composites synthesized at a reaction time of 15 h showed excellent microwave absorption properties. The reflection loss was found to be as low as -43 dB at 6.1 GHz. The enhanced microwave absorption properties may be attributed to the good impedance match, multiple reflections, the scattering owing to the voids between the core and the shell, and the effective complementarities between the dielectric loss and the magnetic loss. Thus, the yolk-shell ternary composites are expected to be promising candidates for microwave absorption applications, lithium ion batteries, and photocatalysis.

关键词： yolk-shelLNi@void@SnO2(Ni3Sn2) galvanic replacement Kirkendall effect microwave absorption

Rational design of robust nano-Si/graphite nanocomposites anodes with strong interfacial adhesion for high-performance lithium-ion batteries

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Chinese Chemical Letters 2021年第2期32卷 910-913页

作者： Yuantao Yan Xiaoli zhao Huanglin Dou Jingjiang Wei wanyu zhao Zhihua Sun Xiaowei Yang School of Materials Science and Engineering Tongji UniversityShanghai 200123China School of Materials Science and Engineering Chang'an UniversityXi'an 710064China

The nano-Si/graphite nanocomposites are the promising anodes candidates for high-energy lithium-ion batteries because of their high theoretical capacities and low volume ***,the nano-Si has a severe tendency to separate from the graphite substrate due to the inherently weak bonding between them,thus leading to the deteriorated cycling performance and low Coulombic ***,we design a robust nano-Si/graphite nanocomposite structure with strong interfacial adhesion caused by the Si—Ti and Ti—C covalent *** abundant Si—Ti and Ti—C bonds formed between nano-Si and graphite greatly enhance the interfacial adhesion force,resulting in the highly stabilized and integrated electrode structure during battery ***,the as-obtained nano-Si/graphite anodes deliver a high capacity retention of 90.0% after 420 cycles at 0.5 C with an average Coulombic efficiency of 99.5%;moreover,a high initial Coulombic efficiency of 90.2% is ***,this work provides a novel strategy to address the poor interfacial adhesion between nano-Si and graphite,which can be applied to other nano-Si based composites anodes.

关键词： Nano-silicon Graphite Interfacial adhesion Initial Coulombic efficiency Lithium-ion batteries

A model for the mean velocity of debris flow movement based on the minimum energy dissipation principle

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Journal of Mountain Science 2024年第12期21卷 3961-3970页

作者： LI Xiangning CHEN Jiangang CHEN Xiaoqing zhao wanyu CHEN Huayong ZHANG Shaoxiong Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and EnvironmentChinese Academy of Sciences(CAS)Chengdu 610041China University of Chinese Academy Sciences Beijing 100049China Shijiazhuang Tiedao University Shijiazhuang 050043China

The geomorphic minimum energy dissipation principle is important in the development of gully evolutionary *** impact of debris flows on channels during movement also adheres to this theory.A minimum energy dissipation model for debris flows has been obtained from previous studies,which is derived from the flow rules of runoff along a channel under rainfall or ice-snow meltwater ***,the lack of consideration for erosion characteristics has hindered a comprehensive understanding of the movement characteristics of debris *** this paper,the phenomenon of volume increase resulting from the entrainment along debris flow movement is considered in order to derive a model for the mean velocity,reflecting the minimum energy dissipation *** entire expression of the mean velocity model is determined through 38 typical glacial and rainstorm debris flow *** evaluate the reliability of the proposed model,we employed 164 monitoring data from 1995 to 2000 in the Jiangjia gully,Yunnan,*** results show that the velocity calculated by the proposed model are highly correlated with those obtained from the monitoring ***,a comparison is made between the mean velocities calculated by the proposed model and those obtained from previous studies,highlighting the exceptional applicability of the proposed *** study will contribute to reveal the movement laws of debris flow along the channel.

关键词： Debris flow Minimum energy dissipation principle Longitudinal profile evolution Mean velocity

Proton-induced fast preparation of size-controllable MoS2 nanocatalyst towards highly efficient water electrolysis

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Chinese Chemical Letters 2021年第3期32卷 1191-1196页

作者： JingJiang Wei Ge Wang Yijie Zhang Shengping Wang wanyu zhao Qihang Liu Congcong Liu Xiaoli zhao Xiaowei Yang School of Materials Science and Engineering Tongji UniversityShanghai 201804China

MoS2 has emerged for catalyzing the hydrogen evolution *** notable strategies have been developed to downsize the MoS2 particles and expose more active ***,the restacking issue,which reduces the exposure degree,has rarely been taken into ***,we report on a facile proton-induced fast hydrothermal approach to produce size-controllable MoS2 nanocatalysts and demonstrate that along the varying of sheet sizes,there is a trade-off between the intrinsic catalytic activity(mainly determined by the unsaturated sulfur on the sheet edges)and the active edge accessibility(influenced by the assembly structure).The size-optimized catalyst delivers a high performance of a low overpotential of~200 mV at 10 mA/cm^(2),a Tafel slope of 46.3 mV/dec,and a stable working state,which is comparable to the recent notable *** findings will provide a pathway for its large-scale application and enhance the water electrolysis performance.

关键词： Size-controllable nanocatalys Proton inducement MoS2 nanocatalyst Hydrogen evolution reaction Electrode-level performance

Processing micrometer-sized particles in crumpled graphene network for freestanding membrane enabled by freeze casting

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Chinese Chemical Letters 2020年第1期31卷 265-268页

作者： Jing Cao Xiaoli zhao Jiahe Wang Huanglin Dou Congcong Liu Xiaojun Yan Yuantao Yan Min Guo wanyu zhao Xiaowei Yang School of Materials Science and Engineering Tongji University

Graphene oxide(GO)is widely used in the construction and application of various 2 D membrane-based materials due to its unique colloidal ***,we demonstrate that micrometer-sized particles can make up freestanding membranes enabled by the extraordinary amphiphilic and polymer-like properties of graphene oxide through freeze *** 2 D macromolecule,GO could well wrap the particles for better uniformity and stability in either dispersion or ***,freeze casting plays an important role in avoiding the severe aggregation of micrometer-sized particles in the solventremoving *** reduction,the membrane exhibits good electrical conductivity while maintaining its integral structure,which can be directly used as a freestanding binder-free *** work provides a universal approach to fabricate freestanding membranes with various micrometersized materials for energy storage.

关键词： Membrane Micrometer-sized particles Graphene oxide Freeze casting Freestanding

Engineering Sodium Metal Anode with Sodiophilic Bismuthide Penetration for Dendrite-Free and High-Rate Sodium-Ion Battery

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Engineering 2022年第4期8卷 87-94页

作者： wanyu zhao Min Guo Zhijun Zuo Xiaoli zhao Huanglin Dou Yijie Zhang Shiying Li Zichen Wu Yayun Shi Zifeng Ma Xiaowei Yang Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education School of Materials Science and EngineeringTongji UniversityShanghai 201804China School of Chemistry and Chemical Engineering Shaoxing UniversityShaoxing 312000China Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province Taiyuan University of TechnologyTaiyuan 030024China Shanghai Electrochemical Energy Devices Research Center School of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Sodium(Na)metal batteries with a high volumetric energy density that can be operated at high rates are highly ***,an uneven Na-ion migration in bulk Na anodes leads to localized deposition/dissolution of sodium during high-rate plating/stripping behaviors,followed by severe dendrite growth and loose ***,we engineer the Na hybrid anode with sodiophilic Na_(3)Bi-penetration to develop the abundant phase-boundary ionic transport *** to intrinsic Na,the reduced adsorption energy and ion-diffusion barrier on Na_(3)Bi ensure even Na^(+)nucleation and rapid Na^(+)migration within the hybrid electrode,leading to uniform deposition and dissolution at high current ***,the bismuthide enables compact Na deposition within the sodiophilic framework during cycling,thus favoring a high volumetric ***,the obtained anode was endowed with a high current density(up to 5 mA∙cm^(−2)),high areal capacity(up to 5 mA∙h∙cm^(−2)),and long-term cycling stability(up to 2800 h at 2 mA∙cm^(−2)).

关键词： Sodium metal anode Dendrite-free Compact electrodeposition Sodiophilic bismuthide Ion diffusion barrier

Microwave induced in-situ formation of SiC nano wires on SiCNO ceramic aerogels with excellent electromagnetic wave absorption performance

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Journal of Advanced Ceramics 2021年第5期10卷 1140-1151页

作者： Keke YUAN Daoyang HAN Junfang LIANG wanyu zhao Mingliang LI Biao zhao Wen LIU Hongxia LU Hailong WANG Hongliang XU Gang SHAO Rui ZHANG School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China The 27th Research Institute of China Electronic Technology Group Corporation Zhengzhou 450047China Henan Key L aboratory of Aeronautical Material and Application Technology School of Materials Science and EngineeringZhengzhou University of AeronauticsZhengzhou 450046China School of Materials Science and Engineering Luoyang Institute of Science and TechnologyLuoyang 471023China

Electromagnetic absorption(EMA)materials with light weight and harsh environmental robustness are highly desired and crucially important in the stealth of high-speed ***,meeting these two requirements is always a great challenge,which excluded the most attractive lightweight candidates,such as carbon-based *** this study,SiC_(nw)-reinfbrced SiCNO(SiC_(nw)/SiCNO)composite aerogels were fabricated through the in-situ growth of SiC_(nw) in polymer-derived SiCNO ceramic aerogels by using catalyst-assisted microwave heating at ultra-low temperature and in short *** phase composition,microstructure,and EMA property of the SiC_(nw)/SiCNO composite aerogels were systematically *** results indicated that the morphology and phase composition of SiC_(nw)/SiCNO composite aerogels can be regulated easily by varying the microwave treatment *** composite aerogels show excellent EMA property with minimum reflection loss of -23.9 dB@13.8 GHz,-26.5 dB@10.9 GHz,and -20.4 dB@14.5 GHz and the corresponding effective bandwidth of 5.2 GHz,3.2 GHz,and 4.8 GHz at 2.0 mm thickness for microwave treatment at 600℃,800℃,and 1000℃,respectively,which is much better than that of SiCN ceramic *** superior EMA performance is mainly attributed to the improved impedance matching,multireflection,multi-interfacial polarization,and micro current caused by migration of hopping electrons.

关键词： polymer-derived SiCNO ceramic aerogel SiC nanowires(SiC_(nw)) microwave heating electromagnetic absorption(EMA)performance

Microwave synthesis of chain-like zircona nanofibers through carbon-induced self-assembly growth

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Frontiers of Materials Science 2017年第4期11卷 353-357页

作者： wanyu zhao Jian LI Bingbing FAN Gang SHAO Hailong WANG Bozhen SONG Shengnan WEI Rui ZHANG School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China Henan Key Laboratory of Aeronautical Material and Application Technology Zhengzhou University of Aeronautics Zhengzhou 450046 China

Chain-like zircona （ZrO2） nanofibers were prepared by microwave sinter- ing without any surfactants or solid templates. Microwave sintering was conducted in a multimode microwave cavity with TE666 resonant mode at 2.45 GHz. Carbon particles were used to activate unique thermal processes when mixed with ZrO2 precursor. The sintering condition was at 1300℃ for 10 min. Samples were characterized by XRD, SEM, TEM techniques. It was found that both monolithic and tetragonal ZrO2 co-existed in samples prepared from the mixture of ZrO2 precursors and carbon by either microwave or conventional sintering. Only m-ZrO2 exists in samples prepared by ZrO2 precursors without carbon. ZrO2 appeared as chain-like nanofibers, which might be attributed to a so- called carbon-induced self-assembly growth mechanism.

关键词： ZrO2 chain-like nanofibers microwave sintering carbon-induced self-assembly growth