Nano-iron oxide (Fe2O3)/three-dimensional graphene aerogel composite as supercapacitor electrode materials with extremely wide working potential window

被引：64
|
作者：
Song, Zhaoxia [1 ]
Liu, Wei [2 ]
Xiao, Peng [2 ]
Zhao, Zhongfu [2 ]
Liu, Guichang [2 ]
Qiu, Jieshan [2 ]
机构：
[1] Dalian Nationalities Univ, Coll Life Sci, Dept Chem Engn, Dalian 116600, Peoples R China
[2] Dalian Univ Technol, Sch Chem Engn, Dalian 116024, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 145卷
关键词：
Nanoparticles; Composite materials; Energy storage and conversion; Iron oxide; Graphene aerogel; Supercapacitor; HIGH-PERFORMANCE; HYDROTHERMAL SYNTHESIS;
D O I：
10.1016/j.matlet.2015.01.040
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The composite of nano-iron oxide (Fe2O3)/three-dimensional graphene aerogel (Fe2O3/GA) was synthesized by a hydrothermal method. The structural and morphological properties of Fe2O3/GA were characterized through X-ray diffraction and scanning electron microscopy. Fe2O3 particles with 30-60 nm in size were homogenously encapsulated in graphene aerogel(GA). In the three-electrode system, an extremely wide working potential window was observed from -0.8 to 0.8 V(vs. SCE) in 0.5 M Na2SO4 aqueous solution, and a specific capacitance of 81.3 F g(-1) was obtained at a constant current density of 1 A g(-1). (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：44 / 47
页数：4
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