The effect of pretreatments on hydrogen adsorption of multi-walled carbon nanotubes

被引：50

作者：

Huang, WZ

Zhang, XB ^{[1
]}

Tu, JP

Kong, FZ

Ma, JX

Liu, F

Lu, HM

Chen, CP

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2003年 / 78卷 / 01期

基金：

中国国家自然科学基金;

关键词：

multi-walled carbon nanotubm; hydrogen adsorption; pretreatment;

D O I：

10.1016/S0254-0584(02)00305-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrogen adsorption of multi-walled carbon nanotubes (MWNTs) was investigated under moderate pressure (12 MPa) at room temperature. The effects of annealing and doping on the hydrogen adsorption of carbon nanotubes have been discussed. It is showed that both heat-treatment and doping play an important role in the hydrogen adsorption of carbon nanotubes. Even when doped with the same element, the hydrogen uptake property was greatly different when the concentration of the doping solution changed. An optimal result (3.2 wt.%) was achieved for carbon nanotubes annealed in NZ at 500degreesC and soaked in 1.0 M KNO3 solution. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：144 / 148

页数：5

共 14 条

[1] High H2 uptake by alkali-doped carbon nanotubes under ambient pressure and moderate temperatures [J].