Ultrafine SnO_(2)in situ modified graphite felt derived from metal-organic framework as a superior electrode for vanadium redox flow battery

作     者：Qing-Chun Jiang Jin Li Yu-Jie Yang Yu-Jie Ren Lei Dai Jia-Yi Gao Ling Wang Jia-Ye Ye Zhang-Xing He Qing-Chun Jiang;Jin Li;Yu-Jie Yang;Yu-Jie Ren;Lei Dai;Jia-Yi Gao;Ling Wang;Jia-Ye Ye;Zhang-Xing He

作者机构：School of Chemical EngineeringNorth China University of Science and TechnologyTangshan063009China Hebei Province Key Laboratory of Photocatalytic and Electrocatalytic Materials for EnvironmentNorth China University of Science and TechnologyTangshan063009China Faculty of ScienceSchool of Chemistry and PhysicsQueensland University of TechnologyBrisbaneQLD4001Australia Center for Materials ScienceQueensland University of TechnologyBrisbaneQLD4001Australia 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第4期

页      面：1214-1226页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0822[工学-轻工技术与工程] 

基　　金：the National Natural Science Foundation of China(Nos.51872090 and 51772097) Hebei Natural Science Fund for Distinguished Young Scholar(No.E2019209433) the Youth Talent Program of Hebei Provincial Education Department(No.BJ2018020) the Natural Science Foundation of Hebei Province(No.E2020209151) 

主　　题：Vanadium redox flow battery(VRFB) Composite electrode Metal-organic framework(MOF) In situ SnO_(2) 

摘      要：Metal-organic framework(MOF)and its derivatives have low-cost,controllable structure,and good catalytic performance,which are often used in the electrochemical *** this work,SnO_(2)in situ modified graphite felt(SnO_(2)/GF)is prepared by hydrothermal method then simple thermal treatment using Sn-based MOF(Sn-MOF)as ***_(2)is uniformly and firmly distributed on the GF surface rather than the common agglomeration and poor bonding of metal oxides on carbon-based electrodes,providing stable active centers for the VO^(2+)/VO_(2)^(+)and V^(2+)/V^(3+)redox ***250 mA·cm^(-2),the energy efficiency of the battery with SnO_(2)/GF remains at 63.2%,while the blank one has *** former battery,at 100 mA·cm^(-2),has higher energy efficiency and good cycle stability(over 200 cycles).The battery performance of this study is better than that of most previous report in metal oxide-related *** work obtains high-performance composite electrode by simple treatment of MOF,which provides a reference for the application of MOF in vanadium redox flow battery.