Effect of acid oxidization of carbon nanotube electrode on the capacitances of double layer capacitors

被引：0

作者：

Li ChenshaWANG DazhiLIANG TongxiangWANG Xiaofeng LIANG Ji Department of Mechanical Engineering Tsinghua UniversityBeijing China Institute of Nuclear Energy Technology Tsinghua UniversityBeijng China ^{[1
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机构：

来源：

Science in China(Series E:Technological Sciences) | 2004年 / 03期

关键词：

carbon nanotubes; electric double layer capacitor; specific capacitance;

D O I：

暂无

中图分类号：

O613 [非金属元素及其化合物];

学科分类号：

070301 ; 081704 ;

摘要：

Polarizable electrode of electric double layer capacitor was made from carbon nanotubes. The effect of acid oxidation of electrode on the specific capacitance was studied. Oxidation removed the redundant carbon, expanded the pore size and introducedf some kinds of functional groups on the surface of CNTs. The specific capacitance of the electrodes winth organic electrolyte was increased from 21.4 to 49.6 F/g after being oxidized at a volume ratio H2SO4 to HNO3 of 3:1.

引用

页码：257 / 264

页数：8

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