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Flexible three-dimensional-networked iron vanadate nanosheet arrays/carbon cloths as high-performance cathodes for magnesium ion batteries

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Science China materials 2022年第8期65卷 2197-2206页

作者： Han Tang Chunli Zuo Fangyu Xiong Cunyuan Pei Shuangshuang Tan Ping Luo Wei Yang Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China Hubei Provincial Key Laboratory of Green Materials for Light Industry Collaborative Innovation Center of Green Light-Weight Materials and ProcessingSchool of Materials and Chemical EngineeringHubei University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan 528200China

Owing to their safety and low cost,magnesium ion batteries(MIBs)have attracted much attention in recent ***,the sluggish diffusion dynamics of magnesium ions hampers the search for appropriate cathode materials with excellent electrochemical ***,we design and synthesize a novel flexible three-dimensional-networked composite of iron vanadate nanosheet arrays/carbon cloths(3 D FeVO/CC)as a binder-free cathode for *** to bare FeVO nanosheets,the 3 D binder-free electrode with designed architecture enables a full range of electrochemical potential,including a high specific capacity of270 mA h g^(-1) and an increased life span(over 5000 cycles).Such achievable high-density energy originates from the synergistic optimization of electron and ion kinetics,while the durability benefits from the robust structure that prevents degradation in *** single-phase reaction mechanism of FeVO in the magnesium ion storage process is also explored by in-situ X-ray diffraction and Raman ***,a flexible MIB pouch cell(3 D FeVO/CCIMgNaTi_(3)O_(7)) is assembled and exhibits practical application *** work verifies that 3 D FeVO/CC is a potential candidate cathode material that can satisfy the requirements of highperformance *** also opens a new avenue to improve the electrochemical performance of cathode materials for MIBs.

关键词： iron vanadate nanosheet arrays flexibility cathode materials magnesium ion batteries

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Synergistic Regulation of Texture and Low-Angle Grain Boundaries Enables Mechanically Robust P-Type Bi2Te3- Based Compounds with Superior Thermoelectric Performance

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SSRN 2024年

作者： Chen, Shuo Luo, Tingting Li, Junjie Liao, Lin Liu, Yutian Yang, Zhen Zhong, Shenlong Wu, Jinsong Su, Xianli Yan, Yonggao Poudeu, Pierre Ferdinand Poudeu Zhang, Qingjie Tang, Xinfeng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China Department of Materials Science and Engineering University of Michigan at Ann Arbo Ann ArborMI48109 United States

Structural material parameters such as grain size, texture, and grain boundary species play crucial roles in anisotropic thermoelectric materials. In this study, the underlying mechanism for rational regulation of grain size, texture, and grain boundary species is uncovered. The variations in the plastic deformation capability and the atomic diffusion rates at different extrusion temperatures lead to a competition between dynamic recrystallization (DRX) and grain growth, which allows for quantitative regulation over grain size, texture, and low-angle grain boundaries (LAGBs) in the material. As a result, grain size can be effectively tuned from the nanometer scale to the micrometer scale, with the orientation factor F(110) adjusting from 0.23 to 0.41, and the concentration of LAGBs varying between 10.9% and 25.2%. The sample extruded at 673 K exhibits an average grain size of 800 nm, which contribute to the observed compressive strength of 226 MPa and bending strength of 126 MPa. Additionally, the high texture and high density of LAGBs ensure a high carrier mobility of 247 cm2 V-1 s-1. The ZT value of 1.2 enables micro-TEC modules and conventional TEC modules to achieve maximum temperature differences (ΔTmax) of 60 K and 78 K, respectively, at the hot-side temperature of 300 K. © 2024, The Authors. All rights reserved.

关键词： Compressive strength

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Polymer “Tape”-Assisted Ball-Milling Method Fabrication Few-Atomic-Layered Bismuth for Improving K^(+)/Na^(+)Storage

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Energy & Environmental materials 2021年第3期4卷 421-427页

作者： Yu Tian Hang Li Shuyan Zhang Haode Zhang Guangze Li Dongqing Liu Yanyuan Qi Zelang Jian Xingke Cai Fujun Li Wen Chen School of Materials Science and Engineering Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China Institute for Advanced Study Shenzhen UniversityShenzhen 518060China College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518060China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjing 300071China

Few-layered 2D analogs exhibit new physical/chemical properties,leading to a strong research interest and broad areas of ***,lots of methods(such as ultrasonic and electrochemical methods)have already used to prepared 2D ***,these methods suffer from the drawbacks of low yield,high cost,or precarious state,which limit the largescale *** by the famous Scotch tape method,we develop a ball-milling with polymer"tape"method,fabricating few-atomic-layered material,showing the high-yield,low-cost,and much *** electrode material,ultrathin 2D materials can shorten the ion transfer pathway,contributing to the development of high-power ***,fewatomic-layered structure can expose more active sites to increase their capacity,showing special energy storage *** use the as-prepared few-atomic-layered Bi(FALB)and reduced oxide graphene composites as the anode for potassium/sodium-ion batteries(KIBs/NIBs).The sample achieves a high reversible capacity of 395 m Ah g^(-1)for KIBs,of which FALB contributes 438 m Ah g^(-1)(higher than the theoretical capacity of Bi,386 m Ah g^(-1)),and it carries outstanding cycle and rate performance in KIBs/NIBs.

关键词： energy storage mechanism few-atomic-layered material polymer"tape" potassium/sodium-ion batteries reduced graphene oxide

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Nitrogen‐doped tin oxide electron transport layer for stable perovskite solar cells with efficiency over 23%

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Interdisciplinary materials 2022年第2期1卷 309-315页

作者： Yanping Mo Chao Wang Xuntian Zheng Peng Zhou Jing Li Xinxin Yu Kaizhong Yang Xinyu Deng Hyesung Park Fuzhi Huang Yi‐Bing Cheng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhanP.R.China Solar Hydrogen Production Lab Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryFoshanP.R.China International School of Materials Science and Engineering Wuhan University of TechnologyWuhanP.R.China Department of Materials Science and Engineering Graduate School of Semiconductor Materials and Devices EngineeringPerovtronics Research CenterLow Dimensional Carbon Materials CenterUlsan National Institute of Science and TechnologyUlsanRepublic of Korea

Tin oxide has made a major breakthrough in high-efficiency perovskite solar cells(PSCs)as an efficient electron transport layer by the low-temperature chemical bath deposition ***,tin oxide often contains pernicious defects,resulting in unsatisfactory ***,we develop high-quality tin oxide films via a nitrogen-doping strategy for high-efficiency and stable planar *** aligned energy level at the interface of doped SnO_(2)/perovskite,more excellent charge extraction and reduced nonradiative recombination contribute to the enhanced efficiency and ***,the power conversion efficiency of the devices based on N‐SnO_(2) film increases to 23.41% from 20.55% of the devices based on the pristine SnO_(2).The N-SnO_(2) devices show an outstanding stability retaining 97.8% of the initial efficiency after steady-state output at a maximum power point for 600s under standard AM1.5G continuous illumination without encapsulation,while less than 50% efficiency remains for the devices based on pristine SnO_(2).This simple scalable strategy has shown great promise toward highly efficient and stable PSCs.

关键词： electron transport layer N doping perovskite solar cell SnO_(2)

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Dynamics of Ring Dark Solitons and the Following Vortices in Spin-1 Bose–Einstein Condensates

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Chinese Physics Letters 2024年第7期41卷 18-26页

作者：钟毓 Houria Triki 周勤 Research Group of Nonlinear Optical Science and Technology Research Center of Nonlinear ScienceSchool of Mathematical and Physical SciencesWuhan Textile UniversityWuhan 430200China Radiation Physics Laboratory Department of PhysicsFaculty of SciencesBadji Mokhtar UniversityP.O.Box 1223000 AnnabaAlgeria State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan 430200China

This work focuses on the evolution behaviors of ring dark solitons(RDSs) and the following vortices after the collapses of RDSs in spin-1 Bose–Einstein condensates. We find that the weighted average of the initial depths of three components determines the number and motion trajectories of vortex dipoles. For the weighted average of the initial depths below the critical depth, two vortex dipoles form and start moving along the horizontal *** the weighted average depth above the critical depth, two or four vortex dipoles form, and all start moving along the vertical axis. For the RDS with weighted average depth at exactly the critical point, four vortex dipoles form, half of the vortex dipoles initiate movement vertically, and the other half initiate movement *** conclusion is applicable to the two-component system studied in earlier research, indicating its universality.

关键词： vortex dipole Einstein

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Achieving High-Strength Porous Tungsten with Wide Porosity Range Via Selective Dissolution W-Ti-Fe Precursor

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SSRN 2024年

作者： Jia, Hao Zhang, Jian Ge, Shuai Zhu, Bing Liu, Ruxia Wu, Dongshuang Luo, Guoqiang Shen, Qiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China School of Materials Science and Engineering Nanyang Technological University Singapore639798 Singapore

Porous tungsten with wide porosity variation is considered a candidate for high-energy X-ray flash radiography. This work combines tape casting and dealloying to selectively dissolve a W-Ti-Fe precursor, achieving high-strength porous tungsten with a wide porosity range. The PVB exists on the surface of particles in the form of an amorphous carbon film after pyrolysis, providing conditions for the W-Fe-C interface reaction. The porosity of porous tungsten is 50.7~80.4%. The compressive strengths of porous tungsten with porosity of 50.7% and 80.4% are 221.9 MPa and 10.6 MPa, respectively. The dissolution of the Ti located in the ligament can enhance the porosity of porous tungsten. The coating composed of the solid solution formed at the interface of W and Ti during heat treatment and Fe3W3C can enhance the ligament strength. This work provides a theoretical reference for preparing porous tungsten with a wide porosity range and high performance. © 2024, The Authors. All rights reserved.

关键词： Dissolution

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原位技术监测界面水解离

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Science Bulletin 2024年第10期69卷 1355-1358页

作者：高修博李静阳晓宇 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing&Shenzhen Research Institute&Laoshan Laboratory Wuhan University of TechnologyWuhan 430070China Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials School of Chemistry and Chemical EngineeringWuhan University of Science and TechnologyWuhan 430081China School of Engineering and Applied Sciences Harvard UniversityCambridge MA02138USA

Most chemical and physical properties of water are related to its dynamic network of hydrogen *** between interfacial water and surfaces of solids often determine the functions and properties of natural and technological processes[1].These interactions are especially important in governing the electrocatalyst promoted hydrogen evolution reaction(HER)in water,which is an interfacial process that has particular significance in the development of hydrogen as a storable energy source.

关键词：原位技术 hydrogen 水解离

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Flexible high-performance microcapacitors enabled by all-printed two-dimensional nanosheets

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Science Bulletin 2022年第24期67卷 2541-2549,M0004页

作者： Pengxiang Zhang Yushui Fu Xin Zhang Xihua Zhang Bao-Wen Li Ce-Wen Nan Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials(Ministry of Education) Shandong UniversityJinan 250061China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center of Smart Materials and DevicesWuhan University of TechnologyWuhan 430070China State Key Laboratory of Silicate Materials for Architectures School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China

Chemically exfoliated nanosheets have exhibited great potential for applications in various electronic ***-based processing strategies such as inkjet printing provide a low-cost,environmentally friendly,and scalable route for the fabrication of flexible devices based on functional inks of twodimensional *** this study,chemically exfoliated high-k perovskite nanosheets(i.e.,Ca_(2)Nb_(3)O_(10)and Ca_(2)NaNb_(4)O_(13))are well dispersed in appropriate solvents to prepare printable inks,and then,a series of microcapacitors with Ag and graphene electrodes are *** resulting microcapacitors,Ag/Ca_(2)Nb_(3)O_(10)/Ag,graphene/Ca_(2)Nb_(3)O_(10)/graphene,and graphene/Ca_(2)NaNb_(4)O_(13)/graphene,demonstrate high capacitance densities of 20,80,and 150 nF/cm^(2) and high dielectric constants of 26,*** 200,*** dielectric enhancement in the microcapacitors with graphene electrodes is possibly attributed to the dielectric/graphene *** addition,these microcapacitors also exhibit good insulating performance with a moderate electrical breakdown strength of approximately 1 MV/cm,excellent flexibility,and thermal stability up to 200℃.This work demonstrates the potential of high-k perovskite nanosheets for additive manufacturing of flexible high-performance dielectric capacitors.

关键词： High-k perovskite nanosheets Inkjet printing Microcapacitors Dielectric enhancement Interface effect

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Mild photothermal therapy-enhanced nano-ferroptosis inducer for potent treatment of advanced prostate cancer

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Nano Research 2025年第4期18卷 375-387页

作者： Xiao Hu Fei Li Xin-Hang Qian Yu-Sen Zhang Shuai Ke Yun-Xia Jin Shuai Yuan Yuan-Yuan Zhang Rui Li Lei Cao Lang Rao Xian-Tao Zeng Ling-Ling Zhang Center for Evidence-Based and Translational Medicine Zhongnan Hospital of Wuhan UniversityWuhan 430071China Institute of Chemical Biology Shenzhen Bay LaboratoryShenzhen 518132China Department of Urology Zhongnan Hospital of Wuhan UniversityWuhan 430071China Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062China Xinjiang Key Laboratory of Solid State Physics and Devices School of Physics Science and TechnologyXinjiang UniversityUrumqi 830017China

Androgen deprivation therapy(ADT)and androgen receptor signaling inhibitors(ARSis)often have limited efficacy in patients with advanced prostate cancer(PCa)(especially AR-negative).Inducing ferroptosis in PCa cells is an attractive therapeutic *** this work,mesoporous polydopamine nanoparticles(MPDA NPs)were developed to simultaneously deliver Cu^(+)/Cu^(2+)ion pairs and glutathione peroxidase 4(GPX4)inhibitor RSL3 to tumor sites for enhanced treatment of *** prepared MPDA-Cu-RSL3@HA(MPCRH)NPs induced ferroptosis by promoting lipid peroxidation and regulating phospholipid profiles in PCa cells,and the above effects were further enhanced by mild photothermal therapy(mPTT)without damaging normal *** can promote reactive oxygen species(ROS)generation and degrade tumor extracellular matrix in vivo to promote nanodrugs intratumoral *** short,this work shows the great application potential of mPTT-enhanced nano-ferroptosis inducers in the field of PCa treatment,in order to provide a reasonable paradigm for nanodrug development and PCa treatment.

关键词： prostate cancer ferroptosis mild photothermal therapy chemodynamic therapy mesoporous polydopamine

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Electrolyte Engineering Toward High-Voltage Aqueous Energy Storage Devices

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Energy & Environmental materials 2021年第3期4卷 302-306页

作者： Jianfeng Tan Jinping Liu School of Chemistry Chemical Engineering and Life Science and State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070China State Center for International Cooperation on Designer Low-carbon&Environmental Materials and School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China

Aqueous electrochemical energy storage(EES)devices are highly safe,environmentally benign,and inexpensive,but their operating voltage and energy density must be increased if they are to efficiently power multifunctional electronics,new-energy cars as well as to be used in smart *** Minireview summarizes the key breakthroughs and progress in expanding the electrochemical stability window(ESW)of aqueous EES devices over the past five *** briefly introducing the electrode engineering ways to widen ESW,we focus on four ground-breaking electrolyte engineering strategies and classify them into two kinds from the perspective of salts and exotic solutes/*** widening degree toward ESW of these emerging electrolytes is compared and the universal fundamental mechanism relating to the interactions between limited water molecules and high-concentration salts(or large amounts of exotic solutes/solvents)is *** challenges and perspectives for high-ESW electrolytes as well as recent advances in low-cost and other metal ion(sodium,potassium,zinc,etc.)-based electrolytes for expanding ESW are also outlined.

关键词： aqueous energy storage systems electrolyte engineering high voltage high-energy density water electrolysis

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