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Suppressing interfacial side reactions of zinc metal anode via isolation effect toward high-performance aqueous zinc-ion batteries

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Nano Research 2023年第5期16卷 6789-6797页

作者： Feng Tao Kaijia Feng Yong Liu Jiangzhuo ren Yi Xiong Chengbo Li fengzhang ren School of Materials Science and Engineering Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing TechnologyHenan University of Science and TechnologyLuoyang 471023China School of Construction Machinery Chang’an UniversityXi’an 710064China School of Materials Science and Engineering Anyang Institute of TechnologyAnyang 455000China

Aqueous zinc(Zn)-ion batteries(AZIBs)are one of the most promising large-scale energy storage devices because of the excellent features of zinc metal anodes,including high theoretical capacity(5,855 mAh·cm^(–3)and 820 mAh·g^(−1)),high safety,and natural ***,the large-scale applications of AZIBs are mainly limited by the severe interfacial side reactions of zinc metal anodes,which results in low plating/stripping Coulombic efficiency and poor cycling *** address this issue,we report an artificial Ta_(2)O_(5)protective layer on zinc foil(Ta_(2)O_(5)@Zn)for suppressing side reactions during Zn deposition/*** results of density functional theory calculation and experiments indicate that Ta_(2)O_(5)@Zn anode can inhibit the side reactions between the electrolyte and zinc anode through the isolation *** from this advantage,the symmetric cells with Ta_(2)O_(5)@Zn anode delivered an ultralong lifespan of 3,000 h with a low overpotential at 0.25 mA·cm^(−2)for 0.05 mAh·cm^(−2).Furthermore,the full cells consisting of Ta_(2)O_(5)@Zn anode and MnO_(2)or NH_(4)V_(4)O_(10)cathode all present outstanding electrochemical performance,indicating its high reliability in practical *** strategy brings new opportunities for the future development of rechargeable AZIBs.

关键词： zinc metal anode Ta_(2)O_(5)coating isolation effect interfacial side reactions electrochemical performance

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Aging Strengthening in Rapidly Solidified Cu-Cr-Sn- Zn Alloy

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Journal of Materials Science & Technology 2009年第2期25卷 230-232页

作者： Juanhua Su fengzhang ren Baohong Tian Pin Liu Qiming Dong College of Materials Science and Engineering Henan University of Science and Technology Luoyang 471003 China

It is known that the strength of alloys can be successfully improved by rapid solidification. The paper presents a process where Cu-Cr-Sn-Zn lead frame alloy is produced by rapid solidification and aging. The microcrystalline structure of rapidly solidified Cu-Cr-Sn-Zn alloy is smaller grain structure examined by optical metallography. The effects of aging processes on the microstructure and properties of the lead frame alloy were investigated. Aged at 500℃ for 15 min the fine coherent precipitates Cr distribute in Cu matrix observed by transmission electron microscopy and the properties of hardness and electrical conductivity properties can reach 178HV and 61%IACS, respectively.

关键词： Cu-Cr-Sn-Zn alloy Strengthening Aging Rapid solidification

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Structure and Optical Properties of ZnO Thin Films Prepared by the Czochralski Method

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Journal of Wuhan University of Technology(Materials Science) 2022年第5期37卷 823-828页

作者： MA Zhanhong ren fengzhang YANG Zhouya School of Materials Science and Engineering Henan University of Science and TechnologyLuoyang471023China Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology Luoyang471023China

The zinc oxide seed film was coated on conductive glass (FTO) substrate by the Czochralski method,Zinc acetate and hexamethylenetetramine were used as raw materials to prepare growth solution,and then ZnO film was prepared by a low-temperature solution *** effects of annealing temperature on the morphology,structure,stress and optical properties of ZnO films were *** thin films were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM),UV-visible absorption spectra (UV-vis),photoluminescence (PL) and X-ray photoelectron spectroscopy (XPS).The results show that the films are ZnO *** the increase of annealing temperature,the diameter of the rod increases,and the nanorods tend to be *** band gap of the sample obtained from the light absorption spectra first increases and then decreases with the increase of annealing *** the annealing temperature is 350 ℃,the crystallinity of zinc oxide film is the highest,the band gap is close to the theoretical value of pure ZnO.

关键词： Czochralski method ZnO film annealing temperature optical properties micro-morphology internal stress

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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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In-situ polymerized PEO-based solid electrolytes contribute better Li metal batteries:Challenges,strategies,and perspectives

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Journal of Energy Chemistry 2024年第5期92卷 548-571页

作者： Zhihui Jia Yong Liu Haoming Li Yi Xiong Yingjie Miao Zhongxiu Liu fengzhang ren School of Materials Science and Engineering Henan Key Laboratory of Non-Ferrous Materials Science&Processing TechnologyHenan University of Science and TechnologyLuoyang 471023HenanChina Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal new Materials and Advanced Processing Technology Henan University of Science and TechnologyLuoyang 471023HenanChina

Polyethylene oxide(PEO)-based solid polymer electrolytes(SPEs)with good electrochemical stability and excellent Li salt solubility are considered as one of the most promising SPEs for solid-state lithium metal batteries(SSLMBs).However,PEO-based SPEs suffer from low ionic conductivity at room temperature and high interfacial resistance with the electrodes due to poor interfacial contact,seriously hindering their practical *** an emerging technology,in-situ polymerization process has been widely used in PEO-based SPEs because it can effectively increase Li-ion transport at the interface and improve the interfacial contact between the electrolyte and ***,we review recent advances in design and fabrication of in-situ polymerized PEO-based SPEs to realize enhanced performance in *** merits and current challenges of various SPEs,as well as their stabilizing strategies are ***,various in-situ polymerization methods(such as free radical polymerization,cationic polymerization,anionic polymerization)for the preparation of PEO-based SPEs are *** addition,the application of in-situ polymerization technology in PEO-based SPEs for adjustment of the functional units and addition of different functional filler materials was systematically discussed to explore the design concepts,methods and working ***,the challenges and future prospects of in-situ polymerized PEO-based SPEs for SSLMBs are also proposed.

关键词： In-situ polymerization Polyethylene oxide Solid polymer electrolytes Lithium metal anodes

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Microstructure and Hardness of Laser Shocked Ultra-fine-grained Aluminum

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Journal of Materials Science & Technology 2011年第9期27卷 793-796页

作者： Tiantian He Yi Xiong Zhiqiang Guo Lingfeng Zhang fengzhang ren Alex A.Volinsky School of Materials Science and Engineering Henan University of Science and Technology Luoyang 471003 China State Key Laboratory of Metastable Mater-ials Science and Technology Yanshan University Qinhuangdao 066004 China Department of Mechanical Engineering University of South Florida Tampa FL 33620 USA

Ultra-fine-grained commercial purity aluminum was produced by severe cold rolling, annealing and then strain- ing at ultra-high rate by a single pass laser shock. Resulted microstructure was investigated by transmission electron microscopy. Microhardness of annealed 0.6μm ultra-fine grained aluminum increased by 67% from 24 to 40 HV. Many 0.3 μm sub-grains appeared at the shock wave center after a single pass laser shock, while high density dislocation networks were observed in some grains at the shock wave edges. Accordingly, microhardness at the impact center increased by 37.5% from 40 to 55 HV. From the impact center to the edge, microhardness decreased by 22% from 55 to 45 HV.

关键词： Ultra-fine grains Commercial purity aluminum Laser processing Microstructure Hardness

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Synthesis and application of single-atom catalysts in sulfur cathode for high-performance lithium–sulfur batteries

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Chinese Chemical Letters 2023年第1期34卷 73-83页

作者： Yingjie Miao Yufan Zheng Feng Tao Zhijun Chen Yi Xiong fengzhang ren Yong Liu 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 and Processing TechnologySchool of Materials Science and EngineeringHenan University of Science and TechnologyLuoyang 471023China School of Intelligent Manufacturing Ecosystem Xi’an Jiaotong–Liverpool UniversitySuzhou 215123China Luoyang Bearing Research Institute Co. Ltd.Luoyang 471039China

Lithium–sulfur(Li-S)batteries are regarded as one of the most promising energy storage devices because of their low cost,high energy density,and environmental ***,Li-S batteries suffer from sluggish reaction kinetics and serious“shuttle effect”of lithium polysulfides(LiPSs),which causes rapid decay of battery capacity and prevent their practical *** address these problems,introducing single-atom catalysts(SACs)is an effective method to improve the electrochemical performance of Li-S batteries,due to their high catalytic efficiency and definite active sites for *** this paper,we summarized the latest developments in enhancing the electrochemical performance of cathode for Li-S batteries through introducing different ***,we briefly introduced the catalytic mechanism of SACs and discussed the strategies of synthesizing SACs,including the spatial confinement strategy and the coordination design ***,the challenges and prospects in this field are *** believe that this review would help to design and fabricate high-performance Li-S batteries via introducing SACs and boost their practical application.

关键词： Single-atom catalysts Lithium-sulfur batteries Sulfur cathode Synthesis and application Polysulfide conversion Shuttle effect

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变形镁合金研究现状

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金属热处理 2005年第C00期30卷 205-210页

作者：任凤章刘平田保红刘勇河南科技大学材料科学与工程学院河南洛阳471003

对变形镁合金的研究现状和最新进展做了评述。重点分析了变形镁合金合金化原理、主要合金元素在变形镁合金中的作用、变形镁合金的热处理以及变形镁合金制备中的诸如快速凝固和喷射沉积等特种制备技术。并简要介绍了变形镁合金的应用领域。

关键词：变形镁合金塑性变形快速凝固喷射沉积晶粒细化

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微量Zr对Cu-Ag合金磨损行为的影响

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材料研究学报 2006年第1期20卷 109-112页

作者：刘平贾淑果郑茂盛任凤章河南科技大学材料学院洛阳471039 西安交通大学材料学院西安710049

采用真空熔炼的方法制备了Cu-Ag-Zr合金,研究了微量Zr对Cu-Ag合金磨损行为的影响,探讨了合金的磨损机理．结果表明:Cu-Ag合金的磨损率随着Zr含量的增加明显减小,随着受电电流和滑动距离的增大逐渐增大．粘着磨损、磨粒磨损和电侵蚀磨损... 详细信息

采用真空熔炼的方法制备了Cu-Ag-Zr合金,研究了微量Zr对Cu-Ag合金磨损行为的影响,探讨了合金的磨损机理．结果表明:Cu-Ag合金的磨损率随着Zr含量的增加明显减小,随着受电电流和滑动距离的增大逐渐增大．粘着磨损、磨粒磨损和电侵蚀磨损是主要的磨损机制．微量Zr的加入使合金中形成弥散细小的析出相,使其磨损性能明显优于Cu-Ag合金．

关键词：金属材料接触线 Cu-Ag-Zr合金电流滑动磨损

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不同调制波长Cu/Ag多层膜硬度分析

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稀有金属材料与工程 2011年第12期40卷 2152-2155页

作者：曹轲任凤章苏娟华赵士阳田保红河南科技大学河南洛阳471003 河南省有色金属材料科学与加工技术重点实验室河南洛阳471003

用直流电沉积双槽法在纯铜基体上制备了不同调制波长的Cu/Ag多层膜,研究了多层膜硬度与调制波长之间的关系。实验结果表明,当调制波长位于600～300nm时,Cu/Ag多层膜的硬度与调制波长之间较好地符合基于位错塞积模型的Hall-Petch关系;当... 详细信息

用直流电沉积双槽法在纯铜基体上制备了不同调制波长的Cu/Ag多层膜,研究了多层膜硬度与调制波长之间的关系。实验结果表明,当调制波长位于600～300nm时,Cu/Ag多层膜的硬度与调制波长之间较好地符合基于位错塞积模型的Hall-Petch关系;当调制波长小于300nm时,硬度与调制波长的关系偏离了Hall-Petch关系。由实验结果分析得出了Cu/Ag多层膜的位错稳定存在极限晶粒尺寸约为25nm,与基于程开甲等人的位错稳定性理论得出的Ag晶体极限晶粒尺寸27nm接近,验证了程开甲等人的位错稳定性理论。

关键词： Cu/Ag多层膜:Hall—Petch关系位错塞积模型位错稳定性

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