Fast ion transport and high capacitance of polystyrene-based hierarchical porous carbon electrode material for supercapacitors

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	Fast ion transport and high capacitance of polystyrene-based hierarchical porous carbon electrode material for supercapacitors
	F. Xu; R. J. Cai; Q. C. Zeng; C. Zou; D. C. Wu; F. Li; X. E. Lu; Y. R. Liang; R. W. Fu
	2011
发表期刊	Journal of Materials Chemistry
ISSN	0959-9428
卷号	21 期号:6 页码:1970-1976
摘要	In this paper, we report the electrochemical capacitive properties of polystyrene-based hierarchical porous carbon (PS-HPC) for supercapacitors. Compared to many porous carbons such as a commercially available activated carbon and an ordered mesoporous carbon, PS-HPC has a unique three-dimensionally (3D) interconnected micro-, meso- and macroporous network and thus exhibits faster ion transport behavior and a larger utilization of surface area in electric double layer capacitors. The 3D interconnected meso-and macroporous network originates respectively from the compact and loose aggregation of crosslinked polystyrene-based carbon nanoparticles, and is able to facilitate rapid ion transfer/diffusion rates. Furthermore, PS-HPC's micropores exist from the 3D interconnected network inside these crosslinked polystyrene-based carbon nanoparticles, thus giving an exceptional electrochemically accessible surface area for charge accumulation. As a result, the capacitance retention ratio and capacitance per surface area of PS-HPC at a high sweep rate of 200 mV s(-1) are as high as 84% and 28.7 mu F cm(-2), respectively. These encouraging results demonstrate the promising application of PS-HPC for high performance supercapacitors.
部门归属	[xu, fei; cai, rongjun; zeng, qingcong; zou, chong; wu, dingcai; lu, xiaoe; liang, yeru; fu, ruowen] sun yat sen univ, sch chem & chem engn, pcfm lab, inst mat sci, guangzhou 510275, guangdong, peoples r china. [li, feng] chinese acad sci, inst met res, natl lab mat sci, shenyang 110016, peoples r china.;wu, dc (reprint author), sun yat sen univ, sch chem & chem engn, pcfm lab, inst mat sci, guangzhou 510275, guangdong, peoples r china;wudc@mail.sysu.edu.cn cesfrw@mail.sysu.edu.cn
关键词	Ordered Mesoporous Carbon Energy-storage Electrochemical Performance Model
URL	查看原文
WOS记录号	WOS:000286614100047
引用统计	被引频次：228[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30793
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Xu,R. J. Cai,Q. C. Zeng,et al. Fast ion transport and high capacitance of polystyrene-based hierarchical porous carbon electrode material for supercapacitors[J]. Journal of Materials Chemistry,2011,21(6):1970-1976.
APA	F. Xu.,R. J. Cai.,Q. C. Zeng.,C. Zou.,D. C. Wu.,...&R. W. Fu.(2011).Fast ion transport and high capacitance of polystyrene-based hierarchical porous carbon electrode material for supercapacitors.Journal of Materials Chemistry,21(6),1970-1976.
MLA	F. Xu,et al."Fast ion transport and high capacitance of polystyrene-based hierarchical porous carbon electrode material for supercapacitors".Journal of Materials Chemistry 21.6(2011):1970-1976.