Hydrogen adsorption and desorption by carbon materials

被引：66

作者：

Kojima, Yoshitsugu ^{[1
]}

Kawai, Yasuaki

Koiwai, Akihiko

Suzuki, Nobuaki

Haga, Tetstuya

Hioki, Tatsumi

Tange, Kyoichi

机构：

[1] Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan

[2] Toyota Motor Co Ltd, Mat Engn Div 3, Shizuoka 4101193, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2006年 / 421卷 / 1-2期

关键词：

hydrogen absorbing materials; gas-solid reaction; transmisson electron microscopy; thermodynamic properties; high-pressure;

D O I：

10.1016/j.jallcom.2005.09.077

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：

Hydrogen adsorption and desorption in different carbon materials were determined at 77 and 296 K. Superactivated carbon having specific surface area of 3220 m(2)/g, adsorbed and desorbed 5 wt.% of hydrogen at 77 K and 1.3 wt.% of hydrogen at 296 K. The values were greater than those of conventional activated carbon, graphite nanofiber and single-walled carbon nanotube. The hydrogen adsorption capacities of the various carbon materials were given as a function of the specific surface area. According to the Clausius-Clapeyron equation, the heat of adsorption of the superactivated carbon was about 6 kJ/mol H-2. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：204 / 208

页数：5

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