文献类型：期刊文献

英文题名：RuO2/Activated Carbon Composite Electrode Prepared by Modified Colloidal Procedure and Thermal Decomposition Method

作者：Li, Xiang Zheng, Feng Gan, Weiping Luo, Xun

第一作者：李翔

通信作者：Li, X[1]|[14440f8550d388a1a795f]李祥;

机构：[1]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Peoples R China;[2]Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2016

卷号：45

期号：1

起止页码：374-378

外文期刊名：JOURNAL OF ELECTRONIC MATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000367467800044)】；

基金：Financial support for this work was provided by Qianjiaohe KY (2013) 167 and Qiankehe J (2014) 2077.

语种：英文

外文关键词：RuO2; activated carbon; specific capacitance; annealing temperature

摘要：RuO2/activated carbon (AC) composite electrode was prepared by a modified colloidal procedure and a thermal decomposition method. The precursor for RuO2/AC was coated on tantalum sheet and annealed at 150A degrees C to 190A degrees C for 3 h to develop thin-film electrode. The microstructure and morphology of the RuO2/AC film were characterized by thermogravimetric analysis (TGA), x-ray diffraction (XRD) analysis, and scanning electron microscopy (SEM). The TGA results showed the maximum loss of RuO2/AC composite film at 410A degrees C, with residual RuO2 of 23.17 wt.%. The amorphous phase structure of the composite was verified by XRD analysis. SEM analysis revealed that fine RuO2 particles were dispersed in an activated carbon matrix after annealing. The electrochemical properties of RuO2/AC electrode were examined by cycling voltammetry, galvanostatic charge-discharge, and cyclic behavior measurements. The specific capacitance of RuO2/AC electrode reached 245 F g(-1). The cyclic behavior of RuO2/AC electrode was stable. Optimal annealing was achieved at 170A degrees C for 3 h.