文献类型：期刊文献

英文题名：3D net carbon-based cobalt sulfides for high-performance supercapacitors by a simple, green and convenient method

作者：Bian, Ziyao[1];Zhang, Zhifang[2];Zhao, Kuangjian[1];Li, Kuan[1];Xiao, Qian[1];Li, Kainan[1];Cao, Haijing[1];Fang, Zebo[3];Jiang, Feng[1];Li, Huiyu[1];Zhu, Yanyan[1]

机构：[1]Shanghai Univ Elect Power, Coll Math & Phys, Shanghai 200090, Peoples R China;[2]Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China;[3]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China

年份：2022

卷号：311

外文期刊名：MATERIALS LETTERS

收录：SCI-EXPANDED(收录号：WOS:000736682000004)、、EI(收录号：20220211449067)、Scopus(收录号：2-s2.0-85122452991)、WOS

基金：We acknowledge the support by the fund for the National Natural Science Foundation of China (Grant No. 51672172, 51872186).

语种：英文

外文关键词：Template method; CoS2-C; Annealing; Composite materials; Electrochemical properties

外文摘要：Transition metal sulfides have attracted widespread interest in energy storage devices due to their unique functions. Here, a simple, green and convenient process has been developed to produce CoS2-decorated 3D carbon network CoS2/C materials. The simple electrode materials of CoS2/C for supercapacitors with the natural carbon network structure provided by filter paper showed multiple advantages, such as accessible high specific surface area, high specific capacitance, and the improved conductivity. The significantly improved specific capacitance of 1320F g(-1) at 1A g(-1) and excellent rate capability with an ultrahigh capacitance retention of 80.9% at 10 A g(-1) were obtained. Cycle performance of the capacitance retention rate is 72.5% after 1000 charge and discharge cycles were retained.