文献类型：期刊文献

英文题名：One-pot Hydrothermal Synthesis of RGO/FeS Composite on Fe Foil for High Performance Supercapacitors

作者：Zhao, Chongjun[1];Shao, Xiaoxiao[1];Zhu, Zhaoqiang[1];Zhao, Chunhua[1];Qian, Xiuzhen[1]

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

年份：2017

卷号：246

起止页码：497

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20172503809384);WOS:【SCI-EXPANDED(收录号:WOS:000406942800056)】；

基金：We are grateful for the support of Shanghai Natural Science Foundation (No. 13ZR1411900), and Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：RGO/FeS; Fe foil; Graphene oxide; Hydrothermal; Supercapacitor

摘要：RGO/FeS composites on Fe foil were successfully prepared via a facile one-pot hydrothermal method, in which Fe foil acted as Fe source of FeS, reductant of GO and subsequent current collector. As-prepared RGO/FeS was directly served as the electrode of supercapacitor which exhibited a high specific capacitance of 900 mF cm(-2) (300 Fg(-1)) and a superior cyclability of 97.5% maximum capacity retention after 2000 cycles. Furthermore, an asymmetric supercapacitor (ASC) was assembled using Ni(OH)(2) as the positive electrode and RGO/FeS as the negative electrode. This ASC delivered a high power density of 20930.4 W kg(-1) with an energy density of 11.63 Wh kg(-1), or a high energy density of 27.91 Wh kg(-1) at the power density of 2093.18 W kg(-1), indicating RGO/FeS is a promising negative electrode of supercapacitor. (C) 2017 Elsevier Ltd. All rights reserved.