Sugar-derived carbon/graphene composite materials as electrodes for supercapacitors

被引：22
|
作者：
Ma, Jia [1 ]
Xue, Tao [2 ]
Qin, Xue [1 ]
机构：
[1] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China
[2] Ctr Anal & Measurement, Sch Mat Sci & Engn, Shanghai, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2014年 / 115卷
关键词：
Graphene; Sugar-derived carbon; Composite materials; Supercapacitors; WALLED CARBON NANOTUBE; ELECTROCHEMICAL PROPERTIES; HIGH-PERFORMANCE; GRAPHENE; HYBRID; CAPACITANCE;
D O I：
10.1016/j.electacta.2013.11.028
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Sugar-derived carbon/graphene composite materials have been prepared by mixing glucose and graphene oxide with the assistance of ultrasonication and calcination. Microstructure measurements show that sugar-derived carbon nanoparticles are anchored to the graphene planes and used as spacers to inhibit the restacking of graphene Sheets during calcination. The composite is a three-dimensional material with a layered and porous structure. Benefiting from such a unique structure, the sugar-derived carbon/graphene composite materials as electrodes for supercapacitors exhibit a high specific capacitance (273 F.g(-1) at a current density of 0.5 A.g(-1)) as well as excellent electrochemical stability. Therefore, this remarkable performance suggests its promising application as an efficient electrode material for electrochemical capacitors. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：566 / 572
页数：7
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