摘要
以水合三氯化钌(RuCl3.3H2O)和正硅酸乙酯(TEOS)为原料,采用溶胶-热分解法制备了超级电容器用(RuO2/SiO2).nH2O复合薄膜电极材料。研究了热处理温度及热处理时间对电极材料电学性能的影响。借助CHI660C电化学工作站对薄膜材料的电化学性能进行了测试,采用SEM、XRD、FTIR等检测手段对复合材料的微观形貌、物相结构进行了分析。结果表明,固定水合三氯化钌和正硅酸乙酯的物质的量比为10∶3,当热处理温度和时间分别为350℃和2h时,复合薄膜电极具有优良的综合性能,比表面积为265.7m2/g,比电容最高为421F/g,充放电电流为0.1A时,内阻最高为0.72Ω。
（RuO2/SiO2 ） · nH2O composite film electrode were prepared by sol-thermal decomposition method, using the hydrate ruthenium （ Ⅲ ） chloride （RuCl3 · 3H2O） and tetraethylorthosilieate （TEOS） as precursors. The effect of the heat-treated temperature, heat-treated time and other factors were researched. The electrochemical property of the thin films was tested by using an electrochemical system of CHI660C. The micrograph, phase structure of the composites were respectively analyzed by SEM, XRD and FTIR. The results show that if the molar mass ratio of RuCl3 · 3H2O and TEOS is 10 ： 3, when the sentering temperature and sentering time are respectively 350℃ and 2h, the composite film electrode exhibites an excellent comprehensive property. It＇s specific surface area is 265. 7m^2/g, and the specific capacitance is 421F/g, besides, the inner resistance under 0. 1A is 0.72Ω.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2012年第10期147-151,共5页
Materials Reports
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
溶胶-热分解法
比电容
supercapacitor, composite films, sol thermal decomposition, specific capacitance
