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new Insight on Graphite Anode Degradation Induced by Li-Plating

Energy & Environmental materials 2022年第3期5卷 872-876页

作者： Yongchuang Xiong Yan Liu Long Chen Songtong Zhang Xiayu Zhu Tengteng Shen Dongsheng Ren Xiangming He Jingyi Qiu Li Wang Qiao Hu Hao Zhang Research Institute of Chemical Defense Beijing 100191China Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China

Graphite is the dominant anode material for lithium-ion batteries;however,it still suffers from Li-plating when charging fast or at low temperature,and Liplating is associated with performance fading and safety ***,we clarify the mechanism of lithium evolution from graphite particles by overlithiation cycle test,in-situ XRD,and titration gas *** observe that the graphite intercalation compounds(GICs,LiC_(12) and LiC_(6)e.g.)gradually become inactive and wrapped by dead lithium or side reaction sediments,while the rate of this degradation will be accelerated as the overpotential of Liplating is decreased after initial Li metal *** understanding is contradictory to the popular one that the degradation of graphite anode after Li plating is mainly caused by the inferior SEI and dead Li induced hindering of Li-ion *** isolation of lithiated graphite particles leading to the fast vanishing of Li insertion/deintercalation process in graphite *** further study the insertion/deintercalation vanishing process at low temperature and high rates,*** work provides a insight on graphite anode degradation induced by Li-plating,and the new understanding can be used to guide the design of advanced materials and electrodes to avoid Li-plating and achieve extreme fast while safe charging.

关键词： degradation graphite Li plating lithium-ion battery over-lithiation

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Integrally Moldable Carbon Fiber Evaporator Using a Weaving Process for Efficient and Stable Solar Water Desalination

SSRN

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SSRN 2024年

作者： Yao, Jinyong Feng, Minyuan Zhang, Naidan Zhou, Yongheng Saeed, Haroon A.M. Xu, Weilin Li, Jianquan Yang, Hongjun College of Materials Science and Engineering Wuhan Textile University Wuhan430200 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan430200 China Winner Medical Co. Ltd. Shenzhen518109 China

The depletion of freshwater resources has become a major global concern. Various promising solar evaporation systems have been proposed;however, they face challenges in terms of adaptability, versatility, and simplicity, which limit their industrial feasibility. To enhance the efficiency of interfacial solar steam evaporation systems based on carbon fibers and utilize industrial technology, a carbon-cotton fabric (CCF) with a well-defined structure was successfully developed through traditional textile weaving techniques. This fabric can be easily processed into different shapes, including flat (CCF-), V-shaped (CCF-V), W-shaped (CCF-W), and O-shaped (CCF-O) structures, allowing for variations in solar thermal evaporation rates and efficiencies. This method provides a strategic approach for investigating the impact of shape on solar thermal evaporation behavior. The experimental data show that the CCF-O sample exhibited a favorable photothermal evaporation rate of 2.29 kg m-2 h-1. Subsequently, the diameter of CFF-O was adjusted to achieve an optimal balance between the water delivery and evaporation rates to improve the solar utilization efficiency. An evaporator with a diameter of 4 cm achieved an evaporation efficiency of 150.3%. This moldable fabric demonstrates promising potential for use in desalination and wastewater purification, offering a unique opportunity to enhance the efficiency, versatility, and portability of solar evaporation technologies. © 2024, The Authors. All rights reserved.

关键词： Wastewater treatment

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Lithiophilic hyperbranched Cu nanostructure for stable Li metal anodes

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SmartMat 2023年第3期4卷 96-107页

作者： Jianyu Chen Xin Qiao Wei Fu Xuran Han Qiang Wu Yizhou Wang Yu Zhang Li Shi Jin Zhao Yanwen Ma State Key Laboratory for Organic Electronics and Information Displays(KLOEID)&Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials(IAM)Nanjing University of Posts&TelecommunicationsNanjingChina Materials Science and Engineering King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia New Energy Technology Engineering Lab of Jiangsu Province School of ScienceNanjing University of Posts&TelecommunicationsNanjingChina Suzhou Vocational Institute of Industrial Technology SuzhouChina

Porous copper(Cu)current collectors are regarded as a promising host for stabilizing lithium(Li)metal anodes but suffer from uncontrollable Li metal deposition due to the intrinsic lithiophobic nature of *** study proposes a vertically aligned Cu host with hyperbranched CuxO nanostructure to provide lithiophilic nucleation sites for homogeneous Li metal ***,the vertically aligned Cu nanostructure dramatically reduces the local current density and brings homogeneous Li‐ion *** lithiophilic hyperbranched CuxO nanostructure with a low nucleation barrier could induce homogeneous Li nucleation and *** a result,the Cu@CuxO nanostructured host exhibits a low nucleation overpotential of 44.3 mV and achieves highly electrochemical reversibility with high Coulombic efficiency of 98.33%in a half‐*** Cu@CuxO nanostructured electrode is capable of working under different current densities varying from 0.5 to 5 mA/cm2 in a symmetric *** assembled full cell coupling of the Li/Cu@CuxO composite anode with the LiFePO4 cathode manifests stable long‐term cycling life at 1 *** study elaborates on the synergistic effect of electrode structure design and interfacial chemistry modification to regulate the Li deposition/dissolution behavior,thus exhibiting remarkable electrochemical performances for next‐generation Li‐metal batteries.

关键词： current collector Li metal anode lithiophilicity low nucleation overpotential vertically aligned structure

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Smart ZnS@C filler for super-anticorrosive self-healing zinc-rich epoxy coating

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Nano Research 2022年第5期15卷 4756-4764页

作者： Kai Yang Yixue Duan Guicheng Liu Guoyan Ma Hao Fu Xuyong Chen Manxiang Wang Gangqiang Zhu Woochul Yang Yiding Shen Shaanxi Key Laboratory of Chemical Additives for Industry Shaanxi University of Science and TechnologyXi’an 710021China Department of Physics Dongguk UniversitySeoul 04620Republic of Korea State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China College of Chemistry and Chemical Engineering Xi'an Shiyou UniversityXi'an 710065China School of physics and Information Technology Shaanxi Normal UniversityXi’an 710062China

The zinc-rich epoxy cathodic protection coating is the most widely used anticorrosion material for marine ***,traditional conductive fillers lack the intelligent self-healing effect,which limits the long-term anticorrosion ***,with uniform carbon-coated ZnS(ZnS@C)nanoballs as the smart active release filler,we propose an anticorrosive and self-healing zinc-rich maleic anhydride epoxy *** to the high pore filling efficiency of the nanoballs,the water vapor transmission rate of the coating with an initial corrosion efficiency of 99.92%and a low-frequency impedance of|Z|f=10mHz=3.88×10^(10) Ω·cm^(2),was reduced by 52%.The carbon-shell of the nanoball increases electron transmission paths in the coating and improves conductivity by nearly two orders of magnitude,which effectively activates more Zn-sites and extends the cathodic protection ***,once the steel-substrate undergoes regional corrosion,the SO_(4)^(2-)hydrolyzes from the ZnS-core of the nanoball and reacts with iron ions on the corroded area accurately and intelligently to fill the gap and self-heals into a new dense barrier layer(Fe_(2)(SO_(4))_(3),etc.),which significantly improves the shielding protection ability during the long-term usage of the *** effective anticorrosion time of the proposed coating could be up to 3,400 h.

关键词： smart ZnS@C fller microemulsion-carbonization method zinc-rich epoxy coating anticorrosion self-healing

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Ballistic Behavior of Three-Dimensional Orthotropic Woven Fabric Based on Virtual Fiber Model

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SSRN 2024年

作者： Zhang, Jian Zhou, Yi Lu, Zhenqian Yue, Jianing Han, Jing Zhou, Kanghui Liu, Shengkai Jiang, Qian Wu, Liwei Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin300387 China Innovation Platform of Intelligent and Energy-Saving Textiles School of Textile Science and Engineering Tiangong University Tianjin300387 China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile University Wuhan China College of Textiles and Clothing Yancheng Institute of Technology Jiangsu 224051 China

This study proposes a novel virtual fiber model (VFM)1 on a fiber scale to capture the ballistic behavior of fabrics. The model effectively accounts for yarn deformation during 3D orthogonal woven fabric (3DOWF) weaving, yarn pull-out, interfiber friction, and yarn interactions during the ballistic response. The optimized VFM was used to explore the ballistic behaviors of the fabrics. The results revealed that the VFM exhibited a ballistic response consistent with high-speed photography observations and successfully captured fiber slippage and pull-out behavior under impact. Compared to the yarn model (YM), the VFM enables the observation of nonsimultaneous fiber breakage and fiber interactions. Moreover, it illustrates the role of yarn pull-out in the penetration resistance of the 3DOWF, dissipating the kinetic energy of the projectile in the form of friction. Furthermore, the VFM delineated the specific functions of each system yarn. Specifically, the warp and weft yarns primarily serve as impediments to the projectile, whereas the Z yarn binds the weft, promoting the increased involvement of the weft in dissipating kinetic energy. Building on this investigation, the impact of the clamping method on the ballistic performance of the 3DOWF was explored. The findings revealed that yarn pullout emerged as the primary failure mode under the weft sides. Notably, the warp yarns predominantly experienced pullout, which enhanced the friction energy. The Z yarn binds to weft yarns that gather with warp yarns to form a strip-like protrusion, impeding the projectile motion owing to the increased number of yarns. The VFM contributes significantly to the exploration of the impact of fabric structures on ballistic performance, offering valuable insights for designing and enhancing ballistic fabric *** study proposes a novel, fiber-scale virtual fiber model (VFM) to capture the ballistic behavior of fabrics. The model accounts for yarn deformation during 3D orthogonal

关键词： Yarn

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Highly active bifunctional catalyst: Constructing FeWO_(4)-WO_(3) heterostructure for water and hydrazine oxidation at large current density

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Nano Research 2021年第11期14卷 4356-4361页

作者： Fang Shen Zhenglin Wang Yamei Wang Guangfu Qian Miaojing Pan Lin Luo Guoning Chen Hailang Wei Shibin Yin College of Chemistry and Chemical Engineering Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsState Key Laboratory of Processing for Non-Ferrous Metal and Featured MaterialsGuangxi UniversityNanning530004China Guangxi Bossco Environmental Protection Technology Co. Ltd12 Kexing RoadNanning530007China

Developing high performance anode catalysts for oxygen evolution reaction (OER) and hydrazine oxidation reaction (HzOR) at large current density is an efficient pathway to produce hydrogen. Herein, we synthesize a FeWO_(4)-WO_(3) heterostructure catalyst growing on nickel foam (FeWO_(4)-WO_(3)/NF) by a combination of hydrothermal and calcination method. It shows good catalytic activity with ultralow potentials for OER (ζ_(10) = 1.43 V, ζ_(1.000) = 1.56 V) and HzOR (ζ_(10) = −0.034 V, ζ_(1.000) = 0.164 V). Moreover, there is little performance degradation after being tested for _(10)0 h at 1,000 (OER) and _(10)0 (HzOR) mA·cm−2, indicating good stability. The superior performance could be attributed to the wolframite structure and heterostructure: The former provides a high electrical conductivity to ensure the electronic transfer capability, and the later induces interfacial electron redistribution to enhance the intrinsic activity and stability. The work offers a brand-new way to prepare good performance catalysts for OER and HzOR, especially at large current density.

关键词： catalyst heterostructure large current density oxygen evolution reaction hydrazine oxidation reaction

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Novel and facile fabrication of hydrophobic sponge for the efficient adsorption of marine crude oil by photothermal conversion

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Polymer 2025年 329卷

作者： Zhang, Di Zhao, Jingyuan Zhang, Tong Yue, Kai Zhao, Ruirui Fu, Hiroshi Zhang, Songnan State Key Laboratory of Advanced Separation Membrane Materials/ School of Chemical Engineering and Technology Tiangong University Tianjin300387 China Ministry of Education Key Laboratory for Advanced Textile Composite Materials/ School of Textile Science and Engineering Tiangong University Tianjin300387 China Co. Ltd. Jiangsu Nantong226000 China

With the acceleration of the globalization of world maritime trade, the oil is largely transported. Whereas, the oil spill inevitably occurs during transportation. This not only causes the waste of energy, but also has a huge impact on the ecology. Therefore, it is imperative to develop efficient adsorbent to recover the leaked crude oil. In this study, a new and facile adsorption material was introduced for the treatment of offshore crude oil leakage. This material combined the hydrophobic modification of polydimethylsililane (PDMS) with the loadings of graphene (GR) and ferriferrous oxide (Fe3O4) over melamine sponge (MS), providing it with excellent hydrophobic/oleophilic and photothermal conversion properties. It revealed that the MS/PDMS/GR + Fe3O4 presented the hydrophobic property with the water contact angle of 147° and superior self-cleaning performance, effectively separating the oil and water mixture with the separation efficiency of up to 99 %. In addition, its excellent photothermal conversion ability converted the light energy into heat energy, reducing the crude oil viscosity and improving the adsorption efficiency. Under one sun illumination (1.0 kW m−2), the adsorption capacity of the MS/PDMS/GR + Fe3O4 for the high viscosity crude oil reached to 20.7 gcrude oil/gsorbent, and the surface temperature of sample was more than 60 °C. This material exhibited excellent recycling properties after 10 adsorption and extrusion cycles, and displayed exceptional photothermal stability during light switch cycles (1.0 kW m−2). This MS/PDMS/GR + Fe3O4 offers novel concepts for designing and developing high-performance sorbents for the ocean oil leakage treatment. © 2025 Elsevier Ltd

关键词： Marine pollution

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Loofah-Inspired Biomass Polysaccharide-Based Aerogels for All-Weather Super-Viscous Crude Oil Adsorption and Wastewater Treatment in Harsh Environment

SSRN

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SSRN 2023年

作者： Chen, Zhicheng Zheng, Long Song, Yiheng Tan, Yeqiang Xianze, Yin College of Materials Science and Engineering State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University Wuhan430200 China State Key Laboratory of Bio-Fibers and Eco-Textiles Collaborative Innovation Center of Marine Biobased Fiber and Ecological Textile Technology Institute of Marine Biobased Materials College of Materials Science and Engineering Qingdao University Qingdao China

Solar-driven viscosity reduction of highly viscous crude oil has emerged as an environmentally friendly method to address large-scale oil spills. However, the challenge lies in the limited availability of sunlight during cloudy days and at night, which hinders the effectiveness of green advanced porous materials. This study developed all-weather-available advanced porous materials in the form of loofah-like structured aerogels composed of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane/MXene/carbon nanotubes (CNTs)/sodium alginate (SA)/cellulose fibers (CFs). MXene and CNTs formed a continuous and stable network that enabled PMCSCAs to rapidly reduce crude oil viscosity for all-day based on photothermal and electrothermal conversions. Additionally, loofah-like porous structure and oriented pipeline biomass skeleton endowed PMCSCAs with stable and rapid adsorption capacity and speed. Considering the complexity of the external environment and oily wastewater composition, we verified the separation performance of PMCSCAs for metal ions and dyes and the ice-breaking ability under icy conditions. PMCSCAs provided a novel approach to achieving clean, high-efficiency, all-day remediation of ultra-viscous crude oil. This "Three birds with one stone" approach is expected to be obtained from nature and used on a large scale, replacing conventional porous adsorbent materials. © 2023, The Authors. All rights reserved.

关键词： Crude oil

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Electrolyte Engineering for High-Voltage Lithium Metal Batteries

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Research 2022年第4期2022卷 781-832页

作者： LiweiDong Shijie Zhong Botao Yuan Yuanpeng Ji Jipeng Liu Yuanpeng Liu Chunhui Yang Jiecai Han Weidong He MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150080China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments and Center for Composite Materials and Structures Harbin Institute of TechnologyHarbin 150080China State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150080China Chongqing Research Institute Harbin Institute of TechnologyChongqing 401151China School of Mechanical Engineering Chengdu UniversityChengdu610106China

High-voltage lithium metal batteries(HVLMBs)have been arguably regarded as the most prospective solution to ultrahigh-density energy storage devices beyond the reach of current ***,the only component inside the HVLMBs in contact with both aggressive cathode and Li anode,is expected to maintain stable electrode/electrolyte interfaces(EEIs)and facilitate reversible Li+***,traditional electrolytes with narrow electrochemical windows fail to compromise the catalysis of high-voltage cathodes and infamous reactivity of the Li metal anode,which serves as a major contributor to detrimental electrochemical performance fading and thus impedes their practical *** stable electrolytes is vital for the further development of ***,optimization principles,design strategies,and future perspectives for the electrolytes of the HVLMBs have not been summarized in *** review first gives a systematical overview of recent progress in the improvement of traditional electrolytes and the design of novel electrolytes for the *** strategies of conventional electrolyte modification,including high concentration electrolytes and CEI and SEI formation with additives,are *** electrolytes including fluorinated,ionic-liquid,sulfone,nitrile,and solid-state electrolytes are also *** addition,theoretical studies and advanced characterization methods based on the electrolytes of the HVLMBs are probed to study the internal mechanism for ultrahigh stability at an extreme *** also foresees future research directions and perspectives for further development of electrolytes in the HVLMBs.

关键词： electrolyte maintain summarized

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Different surface modification methods and coating materials of zinc metal anode

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Journal of Energy Chemistry 2022年第3期31卷 397-412,I0011页

作者： Feng Tao Yong Liu Xinyuan Ren Jing Wang Yazhou Zhou Yingjie Miao Fengzhang Ren Shizhong Wei Jianmin Ma Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Henan Key Laboratory of Non-Ferrous Materials Science&Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023HenanChina National Joint Engineering Research Center for Abrasion Control and Molding of Metal Materials Henan Key Laboratory of High-Temperature Structural and Functional MaterialsHenan University of Science and TechnologyLuoyang 471003HenanChina School of Art&Design Henan University of Science and TechnologyLuoyang 471023HenanChina School of Physics and Electronics Hunan UniversityChangsha 410082HunanChina School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

Rechargeable aqueous Zn-ion batteries(AZIBs)are one of the most promising energy storage devices for large-scale energy storage owing to their high specific capacity,eco-friendliness,low cost and high ***,zinc metal anodes suffer from severe dendrite growth and side reactions,resulting in the inferior electrochemical performance of *** address these problems,surface modification of zinc metal anodes is a facile and effective method to regulate the interaction between the zinc anode and an *** this review,the current challenges and strategies for zinc metal anodes are ***,recent advances in surface modification strategies to improve their electrochemical performance are concluded and ***,challenges and prospects for future development of zinc metal anodes are *** hope this review will be useful for designing and fabricating highperformance AZIBs and boosting their practical applications.

关键词： Zn-ion batteries Zinc metal anode Surface modification Solvent casting method Wet chemistry method

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