摘要
配制RuCl3.3H2O和Co(CH3COO)2的异丙醇混合溶液,采用原位热分解法制备了超级电容器用(RuO2/Co3O4).nH2O复合薄膜电极.借助扫描电镜、X射线衍射仪、红外光谱仪、电化学分析仪等表征薄膜的微观形貌、物相转变以及电化学性能.结果表明,当涂覆液中n(Ru3+):n(Co2+)=1:3时,复合薄膜经260℃热处理3h达到最佳的综合性能,比电容为569F/g,附着力为22.4MPa,内阻仅为0.42Ω,1000次充放电循环后比电容保持在初始电容量的97.6%.
The（RuO2/Co3O4）.nH2O composite films electrode used in super capacitor was prepared from isopropanol solution of RuCl3.3H2O and Co（CH3COO）2 by in-situ thermal decomposition.The micro-morphology,phase transformation and electrochemical properties were studied by scanning electron micro-scope,XRD,infrared spectrometer and electrochemical method,respectively.The results show that,the com-posite films with n（Rn^3＋）： n（Co^2＋）=1：3 exhibit the best performances after heat treatment at 260℃ for 3h.The specific capacitance and adhesive force of the composite films are 569F/g and 22.4MPa,respectively.The in-ternal resistance of the composite films is only 0.42- and its specific capacitance keep 97.6% of initial ca-pacitance after over 1000 charge-discharge cycles.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2011年第8期823-828,共6页
Journal of Inorganic Materials
基金
国家高技术研究发展计划"863"项目(2007AA03Z240)~~
关键词
超级电容器
复合薄膜电极
比电容
附着力
super capacitor
composite films electrode
specific capacitance
adhesion
