文献类型：期刊文献

英文题名：Highly-curved carbon nanotubes supported graphene porous layer structure with high gravimetric density as an electrode material for high-performance supercapacitors

作者：Ma, Zhihua[1];Yang, Jie[1];Wang, Liujie[1];Shi, Lu[1];Li, Pengfa[1];Chen, Gairong[1];Miao, Changqing[1];Mei, Changhao[1]

第一作者：马志华

通讯作者：Chen, GR[1]

机构：[1]Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Peoples R China

第一机构：新乡学院化学化工学院

通讯机构：[1]corresponding author), Xinxiang Univ, Coll Chem & Chem Engn, Xinxiang 453003, Peoples R China.|[110713]新乡学院化学化工学院;[11071]新乡学院;

年份：2018

卷号：745

起止页码：688-695

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20180904843415);Scopus(收录号：2-s2.0-85042500817);WOS:【SCI-EXPANDED(收录号:WOS:000429163800086)】；

基金：This topic of research was financed by the National Natural Science Foundation of China (NSFC51701173) and the Key Research Project of Chinese Universities (18A530004).

语种：英文

外文关键词：Graphene; Carbon nanotubes; Layer structure; Electrochemical performance; Supercapacitors

摘要：Graphene aerogel is one of the most promising candidates for supercapacitors electrode material because of its high specific surface area and good electronic conductivity. However, the extremely low gravimetric density seriously limits its further practical applications. In this paper, a compression strategy was utilized to increase the gravimetric density by forming a unique highly-curved carbon nanotubes supported graphene porous 3D layer structure. The structure and morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectrum and N-2 adsorption/desorption measurement. Results demonstrate that the highly-curved carbon nanotubes between the graphene layers can prevent the restacking of the graphene layers. The newly formed structure retains the merits of graphene aerogel such as high specific surface area, good electronic conductivity, and porous structure. The electrochemical performance was investigated by a galvanostatic charge-discharge test (GDC) and a specific capacitance of 246.3 F g(-1) was achieved, endowing it with great application potential as an supercapacitors electrode material. (c) 2018 Published by Elsevier B.V.