Effect of pore packing defects in 2-D ordered mesoporous carbons on ionic transport

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	Effect of pore packing defects in 2-D ordered mesoporous carbons on ionic transport
	D. W. Wang ; F. Li ; H. T. Fang ; M. Liu ; G. Q. Lu ; H. M. Cheng
刊名	Journal of Physical Chemistry B
	2006
卷号	110 期号:17 页码:8570-8575
关键词	electrochemical impedance spectroscopy double-layer capacitors templating procedure porous-electrodes activated carbons size distribution
ISSN号	1520-6106
中文摘要	Ordered mesoporous materials show great importance in energy, environmental, and chemical engineering. The diffusion of guest species in mesoporous networks plays an important role in these applications, especially for energy storage, such as supercapacitors based on ordered mesoporous carbons ( OMCs). The ion diffusion behavior in two different 2-D hexagonal OMCs was investigated by using cyclic voltametry and electrochemical impedance spectroscopy. In addition, transmission electron microscopy, small-angle X-ray diffraction, and nitrogen cryosorption methods were used to study the pore structure variations of these two OMCs. It was found that, for the OMC with defective pore channels ( termed as pore packing defects), the gravimetric capacitance was greatly decayed when the voltage scan rate was increased. The experimental results suggest that, for the ion diffusion in 2-D hexagonal OMCs with similar mesopore size distribution, the pore packing defect is a dominant dynamic factor.
原文出处	://WOS:000237409500009
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34498]
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,H. T. Fang,et al. Effect of pore packing defects in 2-D ordered mesoporous carbons on ionic transport[J]. Journal of Physical Chemistry B,2006,110(17):8570-8575.
APA	D. W. Wang,F. Li,H. T. Fang,M. Liu,G. Q. Lu,&H. M. Cheng.(2006).Effect of pore packing defects in 2-D ordered mesoporous carbons on ionic transport.Journal of Physical Chemistry B,110(17),8570-8575.
MLA	D. W. Wang,et al."Effect of pore packing defects in 2-D ordered mesoporous carbons on ionic transport".Journal of Physical Chemistry B 110.17(2006):8570-8575.