Hydrous ruthenium dioxide/multi-walled carbon-nanotube/titanium electrodes for supercapacitors

被引：62

作者：

Hsieh, Tung-Feng ^{[2
]}

Chuang, Chia-Chih ^{[3
]}

Chen, Wen-Jauh ^{[4
]}

Huang, Jin-Hua ^{[5
]}

Chen, Wei-Ting ^{[6
]}

Shu, Chi-Min ^{[1
]}

机构：

[1] NYUST, Dept Safety Hlth & Environm Engn, Touliu 64002, Yunlin, Taiwan

[2] Chien Kuo Technol Univ, Dept Gen Educ Ctr, Changhua 50094, Taiwan

[3] Ind Technol Res Inst, Photovolta Technol Ctr, Hsinchu 31040, Taiwan

[4] NYUST, Grad Sch Mat Sci, Touliu 64002, Yunlin, Taiwan

[5] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan

[6] NYUST, Grad Sch Engn Sci & Technol, Touliu 64002, Yunlin, Taiwan

来源：

CARBON | 2012年 / 50卷 / 05期

关键词：

ELECTROCHEMICAL CHARACTERIZATION; HIGH-PERFORMANCE; NANOTUBES; OXIDE; COMPOSITES; CAPACITORS; ENERGY; NANOFIBRES;

D O I：

10.1016/j.carbon.2011.12.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Composite electrodes prepared by vertically aligned multi-walled carbon nanotubes (MVICNTs) coated with hydrous ruthenium dioxide (RuO2 center dot nH(2)O) have previously been used in various supercapacitors. The specific capacitance when using RuO2 center dot nH(2)O/MWCNT/Ti as electrodes in 1.0 M H2SO4 aqueous solution can reach up to 1652 F/g at a scan rate of 10 mV/s, which is larger than that of RuO2 center dot nH(2)O/Ti or MWCNT/Ti. In this study, a RuO2 center dot nH(2)O/MWCNT/Ti composite electrode was examined by X-ray photoelectron spectroscopy, which revealed the existence of hydrous ruthenium dioxide in the Ti current collector. The capacitive behavior of the electrode was analyzed by cyclic voltammetry and the galvanostatic charge-discharge method, and the morphology of the composite electrode was examined by scanning electron microscopy. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.

引用

页码：1740 / 1747

页数：8

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