无机材料学报Issue(8)：855-860,6.DOI:10.15541/jim20150004
一步合成还原氧化石墨烯/MnO2复合材料及其电化学性能
One-step Synthesis and Electrochemical Properties of Reduced Graphene Oxide/MnO2 Composites
摘要
Abstract
Reduced graphene oxide/MnO2 (RGO/M) composites were successfully preparedvia one-step hydrothermal routine, in which graphene oxide serviced as the oxidant and Mn2+ as the reducer. The morphology and microstructure of the nanocomposites were characterized by X-ray diffraction (XRD) analysis, X-ray Photoelectron Spectroscope (XPS), Raman spectra (RS), Fourier transform infrared (FTIR) spectroscope and field emission scanning electron mi-croscope (FESEM). In addition, the electrochemical properties of the composite were evaluated by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy techniques for supercapacitor applications. The results indicate that the RGO/M composites displayed controllable specific capacitance in acidic electrolytes by adjusting the molar ratio of GO to manganous chloride at a specific hydrothermal reaction condition. In the optimal case, a specific capacitance of 277 F/g can be obtained in 1 mol/L H2SO4 at a scan current density of 1 A/g, with a ca-pacitance retention of98% after 500 cycles.关键词
还原氧化石墨烯/二氧化锰/水热法/比电容/超级电容器Key words
reduced graphene oxide/manganese dioxide/hydrothermal/specific capacitance/supercapacitor分类
化学化工引用本文复制引用
侯渊,张邦文,邢瑞光,布林朝克..一步合成还原氧化石墨烯/MnO2复合材料及其电化学性能[J].无机材料学报,2015,(8):855-860,6.基金项目
国家自然科学基金(51164026) （51164026）
包头市科技局园区建设科技发展项目(2010Y2004) National Natural Science Foundation of China (51164026) （2010Y2004）
Science and Technology Development Project of Baotou for Industrial Park construction (2010Y2004) （2010Y2004）
