Synthesis and electrochemical capacitance of binderless nanocomposite electrodes formed by dispersion of carbon nanotubes and carbon aerogels

被引：59

作者：

Bordjiba, Tarik ^{[1
]}

Mohamedi, Mohamed ^{[1
]}

Dao, Le H. ^{[1
]}

机构：

[1] Univ Quebec, INRS Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada

来源：

JOURNAL OF POWER SOURCES | 2007年 / 172卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

carbon paper substrate; carbon nanotubes; carbon aerogel; nanocomposite binderless electrodes; electrochemical capacitor technology;

D O I：

10.1016/j.jpowsour.2007.05.011

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：

Novel nanocomposite carbon aerogel (CAG)-multi-walled carbon nanotubes (MWNT) materials have been synthesized and studied in 5 M KOH for electrochemical capacitor applications. The amount of MWNT in the nanocomposite was varied from 3 to 10 wt%. High specific surface areas ranging between 670 and 7 10 m(2) g(-1) were obtained as measured by nitrogen gas adsorption method, whereas the average pore diameter ranged between 1 and 4 nm. Adding MWNT to the pristine CAG greatly improved the electrical conductivity as measured by electrochemical impedance spectroscopy. Finally, capacitance as high as 218 F g(-1) was obtained with a composite containing 3 wt% of MWNTs. Crown Copyright (c) 2007 Published by Elsevier B.V. All rights reserved.

引用

页码：991 / 998

页数：8

共 41 条

[1] High-capacitance supercapacitor using a nanocomposite electrode of single-walled carbon nanotube and polypyrrole [J].