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

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	Journal of Materials Chemistry
	2011
卷号	21 期号:6 页码:1970-1976
关键词	ordered mesoporous carbon energy-storage electrochemical performance model
ISSN号	0959-9428
中文摘要	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.
原文出处	://WOS:000286614100047
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/30793]
专题	金属研究所_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.