Mesopore-aspect-ratio dependence of ion transport in rodtype ordered mesoporous carbon

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	Mesopore-aspect-ratio dependence of ion transport in rodtype ordered mesoporous carbon
	D. W. Wang ; F. Li ; M. Liu ; G. Q. Lu ; H. M. Cheng
刊名	Journal of Physical Chemistry C
	2008
卷号	112 期号:26 页码:9950-9955
关键词	electrochemical impedance spectroscopy double-layer capacitance pore-size distribution templating procedure porous-electrodes activated carbons supercapacitors performance
ISSN号	1932-7447
中文摘要	The ion transport behavior in hexagonal ordered mesoporous carbon (OMC, two-dimensional mesopore symmetry) materials with diverse mesopore diameter and length was studied by evaluating the dynamic process of inner-pore electric double layer formation. Scanning electron microscopy and nitrogen cryo-sorption methods were used to probe the mesopore characteristics of these OMC materials and determine their aspect ratios (length/diameter). The interfacial capacitance of the inner-pore electric double layer was greatly decayed when shortening ion transport time by increasing the potential sweep rate of cyclic voltammetry or the alternative current frequency of electrochemical impedance spectroscopy. The better ion transport behavior in mesopores with smaller mesopore aspect ratio was obtained.
原文出处	://WOS:000257155200059
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/33121]
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	D. W. Wang,F. Li,M. Liu,et al. Mesopore-aspect-ratio dependence of ion transport in rodtype ordered mesoporous carbon[J]. Journal of Physical Chemistry C,2008,112(26):9950-9955.
APA	D. W. Wang,F. Li,M. Liu,G. Q. Lu,&H. M. Cheng.(2008).Mesopore-aspect-ratio dependence of ion transport in rodtype ordered mesoporous carbon.Journal of Physical Chemistry C,112(26),9950-9955.
MLA	D. W. Wang,et al."Mesopore-aspect-ratio dependence of ion transport in rodtype ordered mesoporous carbon".Journal of Physical Chemistry C 112.26(2008):9950-9955.