超级电容器电极材料VS_(4)@PPy的制备及其电化学性能  

Preparation and Electrochemical Properties of VS_(4)@PPy for Electrode Materials of Supercapacitors

作　　者：赵匡健 卞梓垚 李宽 李凯楠 肖倩 曹海静 刘永生 方泽波[2] 刘士彦 朱燕艳 Zhao Kuangjian;Bian Ziyao;Li Kuan;Li Kainan;Xiao Qian;Cao Haijing;Liu Yongsheng;Fang Zebo;Liu Shiyan;Zhu Yanyan(College of Mathematics and Physics,Shanghai University of Electric Power,Shanghai 200090,China;School of Mathematical Information,Shaoxing University,Shaoxing 312000,China)

机构地区：[1]上海电力大学数理学院,上海200090 [2]绍兴文理学院数理信息学院,浙江绍兴312000

出　　处：《微纳电子技术》2022年第1期25-30,共6页Micronanoelectronic Technology

基　　金：国家自然科学基金资助项目(51971128,52171185);上海市优秀学术/技术带头人计划资助项目(20XD1401800);上海市科委项目(19020501000)。

摘　　要：探索具有优异电化学性能的电极材料是推进超级电容器发展的关键,设计优化过渡金属硫化物并研究其电化学性能对超级电容器的发展和应用至关重要。具有多种不同形貌的VS_(4)正是研究重点之一。采用简单的一步水热法制备了花状VS_(4)纳米材料,通过原位氧化聚合法在VS_(4)上包覆聚吡咯(PPy),得到VS_(4)@PPy纳米复合材料。PPy出色的导电性提高了VS_(4)的电化学性能,在三电极体系下测试VS_(4)@PPy电极电化学性能,结果表明VS_(4)@PPy复合电极具有良好的比容量:在电流密度为1 A·g^(-1)时,所合成的电极比容量为372 C·g^(-1)。所合成的VS_(4)@PPy复合材料为超级电容器的电极材料提供了选择。Exploring electrode materials with excellent electrochemical properties is the key to promote the development of supercapacitors.The design and optimization of transition metal sulfides and the study of their electrochemical properties are crucial to the development and application of supercapacitors.VS_(4) with a variety of different morphologies is one of the research focuses.The flower-like VS_(4) nanomaterial was prepared by a simple one-step hydrothermal method and was coated with polypyrrole(PPy)by in-situ oxidative polymerization to obtain VS_(4)@PPy nanocomposites.The excellent conductivity of PPy improves the electrochemical performance of VS_(4).Electrochemical properties of VS_(4)@PPy electrode were tested in the three-electrode system.The result shows that VS_(4)@PPy composite electrode has good specific capacity,and the specific capacity of the synthesized electrode is 372 C·g^(-1) at a current density of 1 A·g^(-1).The synthesized VS_(4)@PPy composite material provides selection for electrode materials of supercapacitors.

关 键 词：超级电容器 VS_(4)@PPy 电极材料 水热法 纳米材料 复合材料 

分 类 号：TB383[一般工业技术—材料科学与工程] TB33