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Li3N film modified separator with homogenization effect of lithium ions for stable lithium metal battery

Progress in Natural Science:materials International 2021年第6期31卷 845-851页

作者： Zhongyun Yan Cheng Zhou Cheng Li Yan Li Chunli Shen Kaijian Yan Xu Xu International School of Materials Science and Engineering State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Lithium metal anode with high theoretical capacity is considered to be one of the most potential anode materials of the next generation. However, the growth of lithium dendrite seriously affects the application of lithium metal anode and the development of lithium metal batteries（LMBs）. Herein, an ultrathin Li3N film modified separator to homogenize the lithium ions and protect the lithium metal anode was reported. Due to the intrinsic properties of Li3N, the functional separator possessed good thermal stability, mechanical properties and electrolyte wettability, and the homogenization of the lithium ion was realized without increasing the interface impedance. With this functional separator, the Li/Li symmetrical cell could achieve a long cycle with low overpotential for 1000 h at a current density of 1 m A cm-2. Furthermore, when the full battery was assembled with Li FePO4and the discharge capacity could be maintained at 151 m Ah g-1after 400 cycles at 1 C. In addition, the full battery also showed good rate performance, and provided a high discharge capacity of 114 m Ah g-1at 5 C.

关键词： Functional separator Solid electrolyte interface Physical vapor deposition Li metal anode

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Fast preparation and thermoelectric performance of AgSTe based materials via plasma activated sintering

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materials Chemistry and Physics 2024年 323卷

作者： Melzi, Bachir Yang, Dongwang Zheng, Yu Zhang, Mingqi Jun, Li Cui, JingJing Jia, Yongzhong Pan, Zhicheng Zhong, Shenglong Yan, Yonggao State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

AgSTe based materials have recently been identified as promising thermoelectric materials that have favorable properties at room temperature. They are usually obtained by conventional processes involving melting, annealing, and sintering, which incur significant energy and time expenditures. The present investigation involved the synthesis of Ag20S7Te3 compounds by a fast non-equilibrium methodology, i.e., plasma activated sintering from raw elemental powders. The monoclinic Ag20S7Te3 phase crystal was successfully formed at a temperature of 673 K, accompanied by the presence of a secondary monoclinic phase, Ag2S. The Ag20S7Te3 phase predominated in the monoclinic form, constituting a significant percentage at temperature of 873 K. Furthermore, the thermoelectric figure of merit (zT) of the AgSTe phase at 873 K was determined to be 0.42. The rapid sample synthesis described herein has the potential to significantly reduce the duration required for material synthesis, hence presenting a conspicuous advantage in the context of manufacturing on a wide scale. © 2024 Elsevier B.V.

关键词： Tellurium compounds

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Recent advances in flexible self-oscillating actuators

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eScience 2024年第5期4卷 91-109页

作者： Jingjing Li Wenjin Guo Weiqiang Zhao Yutian Zhu Jie Bai Zhigang Xia Xiang Zhou Zunfeng Liu School of Textile Science and Engineering State Key Laboratory of New Textile Materials and Advanced Processing TechnologiesWuhan Textile UniversityWuhan 430200China State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer MaterialsTianjin Key Laboratory of Functional Polymer MaterialsSmart Sensing Interdisciplinary Science CenterCollege of ChemistryNankai UniversityTianjin 300350China College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationKey Laboratory of Organosilicon Material TechnologyHangzhou Normal UniversityHangzhou 311121China College of Chemistry and Chemical Engineering Inner Mongolia Univ TechnolChem Engn CollHohhot 010051China Department of Science China Pharmaceutical UniversityNanjing 211198China

Soft actuators are constituted by a type of intelligent materials,and they can generate reversible mechanical motions under external *** usually achieve continuous actuation by manual turning on or off the power supply,which significantly increases the operation *** contrast,self-oscillating actuators can achieve autonomous motions under constant stimuli,and have recently attained great advancements,as well as promoted the development of autonomous soft *** this review,the latest achievements of soft oscillators are ***,the self-oscillating mechanisms mainly including oscillating chemical reactions and self-shadowing-induced mechanical negative feedback loops are *** oscillators constructed with various materials and configurations,driven by different stimuli and applied in different fields are then presented in ***,the difficulties and hopes of oscillators are ***,self-oscillating actuators are in the stage of vigorous development,and we believe that in the future,they will be used in various fields and make many scenarios more intelligent and autonomous.

关键词： Oscillating actuator Artificial muscles Polymer composite Biomimetic Smart materials

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金属纳米伴侣界面金属原子对淀粉样蛋白纤维化的调控作用

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Science China materials 2024年第7期67卷 2345-2354页

作者：李虎高冠斌余良翀张子俊张斌邓昱周慕庆雪沈雷孙涛垒 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases School of ChemistryChemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

合成具有生物分子伴侣功能的金属纳米伴侣作为调节蛋白质构象的候选物具有良好的应用前景.尽管对金属纳米伴侣已有广泛研究,但其分子中界面金属原子对蛋白质构象的调控作用及其机制尚不清楚,这严重阻碍了对高性能金属纳米伴侣的开发.本... 详细信息

合成具有生物分子伴侣功能的金属纳米伴侣作为调节蛋白质构象的候选物具有良好的应用前景.尽管对金属纳米伴侣已有广泛研究,但其分子中界面金属原子对蛋白质构象的调控作用及其机制尚不清楚,这严重阻碍了对高性能金属纳米伴侣的开发.本研究以相同配体巯基丙酸(MPA)修饰的金纳米团簇Au_(25)为模型,通过界面掺杂金属原子(Cu、Cd、Ag)精准制备出了三种单原子掺杂的纳米伴侣,分别是Au_(24)Cu_(1)、Au_(24)Cd_(1)和Au_(24)Ag_(1),系统地研究了Au_(25)、Au_(24)Cu_(1)、Au_(24)Cd_(1)和Au_(24)Ag_(1)四种纳米伴侣对Aβ40折叠与纤维化的调控作用.全原子分子动力学模拟结果表明,界面掺杂金属原子(Cu、Cd、Ag)可通过范德华力和静电相互作用等弱相互作用影响与之接触的Aβ40单体的折叠.等温滴定量热分析结果进一步表明,Au_(24)Cu_(1)与Aβ40的相互作用分别是Au_(24)Cd_(1)、Au_(24)Ag_(1)和Au_(25)的1.76、2.09、16.67倍.这些不同的相互作用会导致金属纳米伴侣对Aβ折叠与纤维化的不同调节作用,四种金属纳米伴侣抑制Aβ折叠与纤维化效率依次为Au_(24)Cu1>Au_(24)Cd_(1)>Au_(24)Ag_(1)>Au_(25).本文提供了对金属纳米团簇界面金属原子如何发挥作用的微观分子见解,并为通过操纵界面金属原子来定制金属纳米伴侣提供了基础研究数据.

关键词： customizing nano-chaperone nano-interface gold-nanoclusters peptide amyloidosis

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Vertically mounting molybdenum disulfide nanosheets on dimolybdenum carbide nanomeshes enables efficient hydrogen evolution

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Nano Research 2022年第5期15卷 3946-3951页

作者： Tingting Wang Pengyan Wang Yajun Pang Yitian Wu Jin Yang Hao Chen Xiaorui Gao Shichun Mu Zongkui Kou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China College of Chemistry and Materials Engineering Zhejiang A&F UniversityHangzhou 311300China Jiangsu Laboratory of Advanced Functional Materials School of Electronic and Information EngineeringChangshu Institute of TechnologyChangshu 215500China

Designing hierarchical heterostructure to optimize the adsorption of hydrogen intermediate(H*)is impressive for hydrogen evolution reaction(HER)***,we show that vertically mounting two-dimensional(2D)layered molybdenum disulfide(MoS_(2))nanosheets on 2D nonlayered dimolybdenum carbide(Mo_(2)C)nanomeshes to form a hierarchical heterostructure largely accelerates the HER kinetics in acidic electrolyte due to the weakening adsorption strength of H*on 2D Mo_(2)C *** hierarchical MoS2/Mo2C heterostructure therefore gives a decrease of overpotential for up to 500 mV at-10 mA·cm^(-2)and an almost 200-fold higher kinetics current density compared with the pristine Mo2C nanomeshes and maintains robust stability with a small drop of overpotential for only 16 mV upon 5,000 *** further rationalize this finding by theoretical calculations and find an optimized adsorption free energy of H*,identifying that the MoS_(2)featuring strong H*desorption plays a key role in weakening the strong binding of Mo_(2)C with H*and therefore improves the intrinsic HER activity on active C sites of Mo_(2)*** present finding shines the light on the rational design of heterostructured catalysts with synergistic geometry.

关键词： hydrogen evolution reaction transition metal carbide transition metal disulfide two-dimensional nonlayered/layered heterostructure hydrogen adsorption/desorption

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Bioadaptable bioactive glass-β-tricalcium phosphate scaffolds with TPMS-gyroid structure by stereolithography for bone regeneration

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Journal of materials Science & technology 2023年第24期155卷 54-65页

作者： Meng Li Jiawei Jiang Wenbin Liu Xiaolong Huang Xiaopei Wu Wenying Wei Hao Zhu Jinyong Zhang Jun Xiao Honglian Dai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Biomedical Materials and Engineering Research Center of Hubei Province Wuhan 430070 China Department of Orthopedics Tongji Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China Department of Orthopaedics The Third Xiangya Hospital Central South University Changsha 410008 China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen Valley Foshan 528200 China

Bone defect repair remains a troubling problem in clinical orthopedics,which involves complex biological *** phosphates(CaPs)have been widely used owing to their advantage of ***,single component and traditional fabrication methods cannot meet the requirements of bioadaptability during the tissue repair *** this work,0%,5%,15%,25%wt%of BG-TCP(bioactive glass-β-tricalcium phosphate)bioresorbable scaffolds with triply-periodic minimal surfaces(TPMS)-gyroid structure were prepared by the stereolithography(SLA)***-gyroid structure provided an accurate mimicry of natural bone tissue,and the incorporation of BG improved the compressive strength ofβ-TCP matrix,matched with the defective bone(2–12 MPa).Rapid but tunable degradation kinetics(compared with pure TCP)of BG enabled the BG-TCP system to sh8ow adaptable biodegradability to new bone *** vitro studies have shown that composite scaffolds have better mechanical properties(7.82 MPa),and can released appropriate contents of calcium,phosphorous,and magnesium ions,which promoted the osteogenic differentiation of bone marrow mesenchymal stem cells(BMSCs)and angiogenic ability of endothelial progenitor cells(EPCs).Moreover,the in vivo assessment of rat femoral defect revealed that TPMS-structure-based TCP scaffolds accelerated bone ingrowth to the ***,BG-TCP scaffolds,especially 15BG-TCP group,exhibited superior bone regeneration capacity at both 4 and 8 weeks,which achieved an optimal match between the rate of material degradation and tissue *** summary,this study provides insight into influences of bioactive components(BG)and bionic structures(TPMS)on the physical-chemical properties of materials,cell behavior and tissue regeneration,which offers a promising strategy to design bioadaptive ceramic scaffolds in the clinical treatment of bone defects.

关键词： Bioactive glass Tricalcium phosphate Triply periodic minimal surfaces Stereolithography Osteogenesis

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Self-powered sensor based on compressible ionic gel electrolyte for simultaneous determination of temperature and pressure

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InfoMat 2024年第7期6卷 62-75页

作者： Junjie Zou Yanan Ma Chenxu Liu Yimei Xie Xingyao Dai Xinhui Li Shuxuan Li Shaohui Peng Yang Yue Shuo Wang Ce-Wen Nan Xin Zhang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center of Smart Materials and Devices&International School of Materials Science and EngineeringWuhan University of TechnologyWuhanthe People's Republic of China Hubei Key Laboratory of Energy Storage and Power Battery School of MathematicsPhysics and Optoelectronic EngineeringHubei University of Automotive TechnologyShiyanthe People's Republic of China Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefeithe People's Republic of China State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijingthe People's Republic of China

The simultaneous detection of multiple stimuli,such as pressure and temperature,has long been a persistent challenge for developing electronic skin(eskin)to emulate the functionality of human ***,the demand for integrated power supply units is an additional pressing concern to achieve its lightweightness and ***,we propose a self-powered dual temperature–pressure(SPDM)sensor,which utilizes a compressible ionic gel electrolyte driven by the potential difference between MXene and Al *** SPDM sensor exhibits a rapid and timely response to changes in pressure-induced deformation,while exhibiting a slow and hysteretic response to temperature *** distinct response characteristics enable the differentiation of current signals generated by different stimuli through machine learning,resulting in an impressive accuracy rate of 99.1%.Furthermore,the developed SPDM sensor exhibits a wide pressure detection range of 0–800 kPa and a broad temperature detection range of 5–75C,encompassing the environmental conditions encountered in daily human *** dual-mode coupled strategy by machine learning provides an effective approach for temperature and pressure detection and discrimination,showcasing its potential applications in wearable electronics,intelligent robots,human–machine interactions,and so on.

关键词： e-skin gel electrolyte machine learning self-powered dual-mode sensor

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Ultrathin Metal Silicate Hydroxide Nanosheets with Moderate Metal-Oxygen Covalency Enables Efficient Oxygen Evolution

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Energy & Environmental materials 2022年第1期5卷 231-237页

作者： Jiexin Zhu Shikun Li Zechao Zhuang Shan Gao Xufeng Hong Xuelei Pan Ruohan Yu Liang Zhou Lyudmila V.Moskaleva Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Institute of Applied and Physical Chemistry and Center for Environmental Research and Sustainable Technology University of Bremen Department of Chemistry University of the Free State Collage of Chemistry & Chemical Engineering Anhui University Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen Valleyfoshan guangdong 528200china

Exploring efficient,cost-effective,and durable electrocatalysts for electrochemical oxygen evolution reaction(OER)is pivotal for the large-scale application of water *** advance has demonstrated that the activity of electrocatalysts exhibits a strong dependence on the surface electronic ***,a series of ultrathin metal silicate hydroxide nanosheets(UMSHNs)M_(3)Si_(2)O_(5)(OH)_(4)(M=Fe,Co,and Ni)synthesized without surfactant are introduced as highly active OER *** silicate hydroxide nanosheets show an optimal OER activity with overpotentials of 287 and 358 m V at 1 and 10 m A cm^(-2),*** experimental and theoretical studies,it is found that the OER activity of UMSHNs is dominated by the metal-oxygen covalency(MOC).High OER activity can be achieved by having a moderate MOC as reflected by aσ^(*)-orbital(e_(g))filling near unity and moderate[3d]/[2p]***,the UMSHNs exhibit favorable chemical stability under oxidation *** contribution provides a scientific guidance for further development of active metal silicate hydroxide catalysts.

关键词： electrocatalysis metal silicate hydroxide metal-oxygen covalency oxygen evolution reaction ultrathin nanosheet

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In Situ Tin Doping to Enhance the Cycling Performance of 4.9 V LNMO Cathode materials 7

In Situ Tin Doping to Enhance the Cycling Performance of 4.9...

引用

7th International Conference on Power and Energy Applications, ICPEA 2024

作者： Li, Yan Du, Jinqiao Liang, Zhaojie Tian, Jie Wang, Pei Luo, Wen Electric Power Scientific Research Institute Shenzhen Power Supply Bureau Co. Ltd Shenzhen China Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan China

ISBN: (纸本)9798350356113

LiNi0.5Mn1.5O4 (LNMO) cathode material has the advantages of high energy density (650 Wh/kg), high discharge voltage (4.7 V vs Li+/Li), low raw material cost, low pollution, and high lithium ion transmission efficiency. It is a potential high power, low cost cobalt-free lithium-ion battery cathode material. However, the capacity decline of LNMO during high voltage charge and discharge processes leads to short cycle life, which limits its wide application and commercialization. To address this issue, this article uses in-situ Sn doping to enhance the cycle stability of LNMO. By uniformly mixing acetate salts in stoichiometric ratio and using one-step spray drying method to prepare undoped and Sn-doped LNMO cathode materials, this study systematically investigates the structural changes, morphological characteristics, and electrochemical performance before and after doping. The capacity retention rates of Sn-doped LNMO materials after 350 cycles at 0.7C are 93.5% and 94.5%, respectively, significantly higher than the undoped 80.8%, indicating that in-situ Sn doping can significantly enhance cycle performance. This study demonstrates that the LiNi0.5Mn1.46O0.04 electrode prepared by spray drying method, with its simple and straightforward synthesis process and excellent electrochemical performance, has the potential to become a high-performance lithium-ion batteries cathode material. © 2024 IEEE.

关键词： Lithium-ion batteries

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Defect engineering of hierarchical porous carbon microspheres for potassium-ion storage

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Rare Metals 2022年第10期41卷 3446-3455页

作者： Xin-Fei Wu Zi-Jian Li Jin-Xiao Liu Wen Luo Jean-Jacques Gaumet Li-Qiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing International School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Department of Physics School of ScienceWuhan University of TechnologyWuhan430070China Laboratoire de Chimie et Physique:Approche Multi-échelles des Milieux Complexes(LCP-A2MC)Institut Jean BarriolUniversitéde LorraineMetz57070France

Owing to adjustable microstructure and stable physiochemical properties,carbon-based materials are regarded as promising materials as anodes for potassium-ion batteries(PlBs).Building amorphous structure and introducing defects are favorable methods to generate active sites and improve the electrochemical performances of carbon-based *** this work,we develop a facile carbonization method to prepare sulfur-doped amorphous carbon microspheres with hierarchical structure and modulated defects concentration(S-CM-700) for potassium *** from the special microstructure,S-CM-700 exhibits the optimal performance and obtains high reversible capacity of 199.6 mAh·g^(-1) at 100 mA·g^(-1),excellent rate property and prominent durability(0.0055%capacity decay per cycle during 1800 cycles).Kinetics analysis and electrochemical characterization are carried out to reveal that the potassium storage could be boosted by regulating the defect level,layer spacing and the content of *** work provides a general synthesis approach to prepare sustainable carbon anodes for advanced PlBs.

关键词： Potassium-ion battery(PIB) Defect engineering Amorphous carbon Hierarchical structure Anode

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