Hollow graphene spheres self-assembled from graphene oxide sheets by a one-step hydrothermal process

被引：62

作者：

Cao, Jianyun ^{[1
]}

Wang, Yaming ^{[1
]}

Xiao, Ping ^{[2
]}

Chen, Yingchun ^{[2
]}

Zhou, Yu ^{[1
]}

Ouyang, Jia-Hu ^{[1
]}

Jia, Dechang ^{[1
]}

机构：

[1] Harbin Inst Technol, Inst Adv Ceram, Harbin 150001, Peoples R China

[2] Univ Manchester, Sch Mat, Ctr Mat Sci, Manchester M1 7HS, Lancs, England

来源：

CARBON | 2013年 / 56卷

关键词：

FABRICATION; CAPSULES;

D O I：

10.1016/j.carbon.2012.12.075

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We developed a one-step hydrothermal method to assemble. graphene oxide (GO) sheets into hollow graphene spheres (HGSs), using only a GO/H2SO4 aqueous suspension as the starting material. Scanning electron microscope, focused ion beam scanning electron microscope and transmission electron microscope images show that the as-prepared HGSs vary from 1 to 3 gm in diameter and have a hollow interior structure. The as-prepared HGSs show a high capacitance of 207 F g(-1), as well as good rate capability and cycling stability when used as electrode materials for supercapacitors. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：389 / 391

页数：3

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