Reactable ionic liquid assisted solvothermal synthesis of graphite-like C3N4 hybridized α-Fe2O3 hollow microspheres with enhanced supercapacitive performance

被引：164
作者：
Xu, Li [1 ,2 ]
Xia, Jiexiang [2 ]
Xu, Hui [3 ]
Yin, Sheng [2 ]
Wang, Kun [2 ]
Huang, Liying [2 ]
Wang, Leigang [1 ]
Li, Huaming [2 ]
机构：
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[3] Jiangsu Univ, Sch Environm, Zhenjiang 212013, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2014年 / 245卷
基金：
中国博士后科学基金;
关键词：
Hematite; Graphitic carbon nitrides; Hollow microsphere; Ionic liquid; Supercapacitor; LIGHT PHOTOCATALYTIC ACTIVITY; REDUCED GRAPHENE OXIDE; VISIBLE-LIGHT; IRON-OXIDE; HYDROTHERMAL SYNTHESIS; OXYGEN REDUCTION; CARBON NITRIDE; ELECTROCHEMICAL CAPACITOR; ELECTRODE MATERIAL; NANOTUBE ARRAYS;
D O I：
10.1016/j.jpowsour.2013.07.014
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：
A route to fabricate the graphite-like C3N4 hybridized alpha-Fe2O3 (g-C3N4/alpha-Fe2O3) hollow microspheres is designed. This route develops an ionic liquid system containing iron ions for manufacturing the g-C3N4/alpha-Fe2O3 hollow microspheres by a novel and eco-friendly solvothermal method at low temperature condition. The effect of ionic liquids on the morphology of the g-C3N4/alpha-Fe2O3 hybrid composites has been investigated in detail. It is found that ionic liquid 1-butyl-3-methylimidazolium tetrachlorideferrate(III) [Bmim]FeCl4 is supposed to have the triple roles of reactant, dispersing media and template at the same time, and is vital for the structure of the g-C3N4/alpha-Fe2O3 hollow microspheres. In addition, the capacitance of the g-C3N4/alpha-Fe2O3 hollow microspheres as electrode materials for supercapacitors is tested by cyclic voltammetry and chronopotentiometry measurements. The g-C3N4/alpha-Fe2O3 hollow microspheres exhibit large specific capacitance, excellent cycling performance and high Coulombic efficiency. The designed g-C3N4/alpha-Fe2O3 hollow microspheres show potential applications in supercapacitors. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：866 / 874
页数：9
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