文献类型：期刊文献

英文题名：RuO2/Activated Carbon Composite Electrode Preparedby 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, Xiang|[14440f8550d388a1a795f]李祥;

机构：[1] School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang, China; [2] School of Materials Science and Engineering, Central South University, Changsha, China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：|贵州理工学院材料与冶金工程学院

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：EI(收录号：20154301438573)

语种：英文

外文关键词：Activated carbon - Annealing - Capacitance - Carbon carbon composites - Composite films - Decomposition - Electric discharges - Electrodes - Phase structure - Ruthenium alloys - Scanning electron microscopy - Thermogravimetric analysis - Thin films - X ray diffraction analysis

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 150°C to 190°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 410°C, with residual RuO2of 23.17?wt.%. The amorphous phase structure of the composite was verified by XRD analysis. SEM analysis revealed that fine RuO2particles 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 170°C for 3?h. ? 2015, The Minerals, Metals & Materials Society.