文献类型：期刊文献

英文题名：One-Step Hydrothermal Synthesis of 3D Petal-like Co9S8/RGO/Ni3S2 Composite on Nickel Foam for High-Performance Supercapacitors

作者：Zhang, Zhuomin[1];Wang, Qian[1];Zhao, Chongjun[1];Min, Shudi[1];Qian, Xiuzhen[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

年份：2015

卷号：7

期号：8

起止页码：4861

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20151100623545);WOS:【SCI-EXPANDED(收录号:WOS:000353005300052)】；

基金：Thanks are due to NSFC (20504026), the Shanghai Committee of Science and Technology (13ZR1411900), Shanghai Leading Academic Discipline Project and Key Laboratory Project (B502, 08DZ2230500).

语种：英文

外文关键词：Co9S8/RGO/Ni3S2 composites; supercapacitor; Ni foam; hydrothermal method; chemical redox

摘要：Co9S8, Ni3S2, and reduced graphene oxide (RGO) were combined to construct a graphene composite with two mixed metal sulfide components. Co9S8/RGO/Ni3S2 composite films were hydrothermal-assisted synthesized on nickel foam (NF) by using a modified active metal substrate route in which nickel foam acted as both a substrate and Ni source for composite films. It is found that the Co9S8/RGO/Ni3S2/NF electrode exhibits superior capacitive performance with high capability (13.53 F cm(-2) at 20 mA cm(-2), i.e., 2611.9 F g(-1) at 3.9 A g(-1)), excellent rate capability, and enhanced electrochemical stability, with 91.7% retention after 1000 continuous charge-discharge cycles even at a high current density of 80 mA cm(-2).