文献类型：期刊文献

英文题名：Irradiation preparation of reduced graphene oxide/carbon nanotube composites for high-performance supercapacitors

作者：Sun, Minqiang[1];Wang, Gengchao[1];Li, Xingwei[1];Li, Chunzhong[1]

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

年份：2014

卷号：245

起止页码：436

外文期刊名：JOURNAL OF POWER SOURCES

收录：;EI(收录号：20133116552492);WOS:【SCI-EXPANDED(收录号:WOS:000325234500055)】；

基金：We greatly appreciate the financial supports of National Natural Science Foundation of China (51173042, 20925621), Shanghai Municipal Science and Technology Commission (12nm0504102), Fundamental Research Funds for the Central Universities, and Innovation Program of Shanghai Municipal Education Commission (11ZZ55).

语种：英文

外文关键词：Graphene; Carbon nanotubes; Composite electrode; Supercapacitors; Irradiation

摘要：Novel hierarchical composites of reduced graphene oxide/acid-treated multi-walled carbon nanotubes (RGO/aMWCNT) are prepared by Co-60 gamma-ray irradiation in isopropanol/water under an inert atmosphere. The irradiation reduction mechanism of graphene oxide is further investigated and verified. The prepared RGO/aMWCNT composites display a three-dimensional interpenetrating network structure. And the composite with the GO/aMWCNT weight ratio of 80/20 possesses high conductivity (1820 S m(-1)), large specific surface area (1420 m(2) g(-1)) and low oxygen content. As a result, it shows improved electrochemical capacitance (227 F g(-1)), excellent cycling stability (4.9% capacitance loss after 10,000 cycles) and rate capability. Furthermore, this irradiation reduction technique used to prepare the RGO/aMWCNT composites is readily scalable to industrial levels. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.