期刊
JOURNAL OF POWER SOURCES
卷 160, 期 2, 页码 1495-1500出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2006.02.016
关键词
PAN-ACF; tension; micropore; specific capacitance; impedance spectroscopy
Polyacrylonitrile (PAN)-based, microporous activated carbon fibers (ACFs) were investigated as electrode materials for electrochemical capacitors in KOH electrolyte solutions. PAN-ACFs were analyzed by using nitrogen adsorption data and the Dubinin-Raduskevich equation. The pore size distributions were narrow. As the micropore volume increased, the average micropore diameter decreased. Cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and charge-discharge profile analysis were used to investigate the penetrability of electrolyte ions into the carbon electrodes. The electrolyte ions in the carbon electrode with a large micropore diameter could be accessible easily even if the pore size distribution is narrow. However, the specific capacitance decreased in spite of the increase of the micropore volume. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据