Pore structure of SWNTs with high hydrogen storage capacity

被引：2

作者：

Quanhong Yang

Chang Liu

Min Liu

Yanzhen Fan

Huiming Cheng

Maozhang Wang

机构：

[1] Chinese Academy of Sciences,State Laboratory for Materials Science, Institute of Metal Research

[2] Chinese Academy of Sciences,State Key Laboratory for Coal Conversion, Institute of Coal Chemistry

来源：

Science in China Series E: Technological Science | 2002年 / 45卷 / 6期

关键词：

single-walled carbon nan otubes (SWNTs); hydrogen adsorption; pore structure; surface energy;

D O I：

10.1360/02ye9064

中图分类号：

学科分类号：

摘要：

This paper reveals, by analyses of nitrogen cryo-adsorption isotherm, the energetic and structural heterogeneity of single-walled carbon nanotubes (SWNTs) which has a high hydrogen storage capacity. It was found that SWNTs had manifold pore structures and distributed surface energy. By comparison of the pore structures and energy distributions of SWNTs before and after hydrogen adsorption, it is preliminarily indicated that hydrogen adsorption occurred in micropores and mesopores with smaller diameter, and that the pores of different diameters determined different hydrogen adsorption processes and underwent different, structure changes during hydrogen adsorption.

引用

页码：561 / 568

页数：7

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