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; 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
	2008 ; 2008
发表期刊	Journal of Physical Chemistry C ; Journal of Physical Chemistry C
ISSN	1932-7447 ; 1932-7447
卷号	112 期号:26 页码:9950-9955
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.; 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.
部门归属	[wang, da-wei; li, feng; liu, min; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [lu, gao qing] univ queensland, ctr excellence funct nanomat, australian res council, sch engn, brisbane, qld 4072, australia.;cheng, hm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn ; [wang, da-wei; li, feng; liu, min; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [lu, gao qing] univ queensland, ctr excellence funct nanomat, australian res council, sch engn, brisbane, qld 4072, australia.;cheng, hm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn
关键词	Electrochemical Impedance Spectroscopy Electrochemical Impedance Spectroscopy Double-layer Capacitance Double-layer Capacitance Pore-size Distribution Pore-size Distribution Templating Procedure Templating Procedure Porous-electrodes Porous-electrodes Activated Carbons Activated Carbons Supercapacitors Supercapacitors Performance Performance
URL	查看原文 ; 查看原文
WOS记录号	WOS:000257155200059 ; WOS:000257155200059
引用统计	被引频次：105[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/321006/33121
专题	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, Mesopore-aspect-ratio dependence of ion transport in rodtype ordered mesoporous carbon[J]. Journal of Physical Chemistry C, Journal of Physical Chemistry C,2008, 2008,112, 112(26):9950-9955, 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.