GAMMA-RAY IRRADIATION-INDUCED IMPROVEMENT OF HYDROGEN ADSORPTION IN MULTI-WALLED CARBON NANOTUBES

被引：15

作者：

Qian, Wen ^{[1
]}

Chen, Jiafu ^{[1
]}

Wei, Lingzhi ^{[1
]}

Wu, Liusuo ^{[1
]}

Chen, Qianwang ^{[1
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

来源：

NANO | 2009年 / 4卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Carbon nanotube; defect; hydrogen adsorption; irradiation effects; physisorption and chemisorption; STORAGE; PURIFICATION; GRAPHITE;

D O I：

10.1142/S1793292009001459

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An improved hydrogen adsorption capacity of 0.5-0.6 wt% was obtained at room temperature and 10.0 MPa pressure for commercial MWNT sample by gamma-ray irradiation, compared with 0.33 wt% of pristine MWNTs. The irradiation-induced defects in structure, which is favorable for hydrogen adsorption, were characterized by ESR spectrum, elemental analysis, and Raman spectrum. The results show that gamma-ray irradiation increased the hydrogen adsorption capacity due to the increasing number of defects created by gamma-photons, but would reach the maximum when defect concentration achieves saturation.

引用

页码：7 / 11

页数：5

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