Kinetics of absorption and desorption of hydrogen in alloy powder

被引：160

作者：

Chou, KC ^{[1
]}

Li, Q

Lin, Q

Jiang, LJ

Xu, KD

机构：

[1] Univ Sci & Technol Beijing, Dept Phys Chem, Beijing 100083, Peoples R China

[2] Shanghai Univ, Sch Mat Sci, Shanghai 200072, Peoples R China

[3] Gen Res Inst NonFerrous Met, Beijing 100088, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2005年 / 30卷 / 03期

基金：

中国国家自然科学基金;

关键词：

hydrogen storage materials; hydrogen absorption/desorption; Mg1.95Ag0.05Ni and LaNiMg17 alloys;

D O I：

10.1016/j.ijhydene.2004.04.006

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：

A new model for predicting the reacted fraction of hydriding/dehydriding (H/D) in powder hydrogen storage materials has been developed, which offers an analytic form expressing the reacted fraction of hydrogen absorption/desorption (A/D) as a function of time, temperature and pressure explicitly. Therefore it is simple and practical. Besides, an important new concept, so called the "characteristic absorption/desorption time" has been introduced that greatly simplifies the formulae and offers some sigificant physical meaning that might be useful for theoretical discussion in future. The application of this new model to Mg1.95Ag0.05Ni and LaNiMg17 alloys indicates that this new model works very well. (C) 2004 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：301 / 309

页数：9

共 16 条

[1]

ALBERTY RA, 1987, PHYSL CHEM

[2] Fast hydrogen sorption kinetics of nanocrystalline Mg using Nb2O5 as catalyst [J].

Barkhordarian, G ;

Klassen, T ;

Bormann, R .

SCRIPTA MATERIALIA, 2003, 49 (03) :213-217

[3] Hydrogen sorption of Mg-based mixtures elaborated by reactive mechanical grinding [J].

Bobet, JL ;

Chevalier, B ;

Song, MY ;

Darriet, B ;

Etourneau, J .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 336 (1-2) :292-296

[4] FORMATION AND DISSOCIATION OF MAGNESIUM ALLOY HYDRIDES AND THEIR USE FOR FUEL STORAGE IN HYDROGEN CAR [J].

DOUGLASS, DL .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1975, 6 (12) :2179-2189

[5] Two mathematical models for the hydrogen storage properties of AB2 type alloys [J].

Fang, SS ;

Zhou, ZQ ;

Zhang, JL ;

Yao, MY ;

Feng, F ;

Northwood, DD .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 :10-13

[6] Hydrogen absorption kinetics of MmNi4.7Al0.3 [J].

Fernandez, GE ;

Rodriguez, D ;

Meyer, G .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1998, 23 (12) :1193-1196

[7]

GERARD N, 1992, HYDROGEN INT COMPOUN, V2, pCH4

[8] Structural study and hydrogen sorption kinetics of ball-milled magnesium hydride [J].

Huot, J ;

Liang, G ;

Boily, S ;

Van Neste, A ;

Schulz, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 :495-500

[9] Hydrogen storage properties of new ternary system alloys:: La2MgNi9, La5Mg2Ni23, La3MgNi14 [J].

Kohno, T ;

Yoshida, H ;

Kawashima, F ;

Inaba, T ;

Sakai, I ;

Yamamoto, M ;

Kanda, M .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 311 (02) :L5-L7

[10] Activity and capacity of hydrogen storage alloy Mg2NiH4 produced by hydriding combustion synthesis [J].

Li, LQ ;

Akiyama, T ;

Yagi, L .

JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 316 (1-2) :118-123

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