期刊
CHEMICAL ENGINEERING JOURNAL
卷 264, 期 -, 页码 603-609出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2014.11.140
关键词
Graphene; Nickel oxide; Supercapacitor; Three-dimensional graphene
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [NRF-2012R1A1A1015124]
- National Research Foundation of Korea [2012R1A1A1015124, 22A20130000071] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study presents a simple and facile method for preparing three-dimensional (3D) porous reduced graphene oxide (rGO) and NiO nanoparticles composites (3D-RGNi) as high performance supercapacitor electrodes. The 3D porous graphene framework is first produced by the self-assembly of poly(methyl methacrylate) (PMMA) particles and graphene oxide (GO), followed the adsorption of Ni precursor on GO. High-temperature treatment is simultaneously carried out to fabricate the 3D porous structured rGO decorated with NiO nanoparticles. The as-synthesized 3D-RGNi electrode exhibits a high specific capacitance of 1328 F g(-1) at a current density of 1 A g(-1) and an excellent cycling stability with 87% retention of the capacitance after 2000 cycles of galvanostatic charge-discharge. These high capacitance performances are attributed to the synergistic effects from the incorporation of the rGO network and NiO nanoparticles, and the highly porous structure of 3D-RGNi. Hence, it is expected that 3D-RGNi might serve as a promising materials for electrochemical energy storage applications. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据