Facile and rapid synthesis of highly crumpled graphene sheets as high-performance electrodes for supercapacitors

被引：51

作者：

Yan, Jun ^{[1
]}

Xiao, Ying ^{[1
]}

Ning, Guoqing ^{[2
]}

Wei, Tong ^{[1
]}

Fan, Zhuangjun ^{[1
]}

机构：

[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Changping, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 08期

基金：

美国国家科学基金会;

关键词：

NITROGEN-DOPED GRAPHENE; REDUCED GRAPHENE; HIGH-ENERGY; CARBON; OXIDE; NANOSHEETS; SANDWICH; STORAGE; NANOPARTICLES; FABRICATION;

D O I：

10.1039/c2ra22685e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly crumpled graphene sheets (HCGSs) have been prepared by a facile and rapid route through freezing a chemically reduced graphene oxide aqueous suspension with liquid nitrogen. The porous and highly crumpled graphene structure with a large surface area and pore volume facilitates fast ionic transport within the electrode while preserving excellent electrical conductivity and thus endows HCGSs with excellent electrochemical properties. As the electrodes for supercapacitors, the HCGSs exhibit high specific capacitance (259 F g(-1)), excellent rate capability and cycling stability (93% retention after 5000 cycles).

引用

页码：2566 / 2571

页数：6

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