Interaction of hydrogen with an Mg-Al alloy

被引：64

作者：

Andreasen, A ^{[1
]}

Sorensen, MB

Burkarl, R

Moller, B

Molenbroek, AM

Pedersen, AS

Andreasen, JW

Nielsen, MM

Jensen, TR

机构：

[1] Riso Natl Lab, Dept Mat Res, DK-4000 Roskilde, Denmark

[2] Tech Univ Denmark, Interdisciplinary Res Ctr Catalysis, Dept Chem Engn, DK-2800 Lyngby, Denmark

[3] Aarhus Univ, INano, Dept Chem, DK-8000 Aarhus C, Denmark

[4] Haldor Topsoe Res Labs, DK-2800 Lyngby, Denmark

[5] Riso Natl Lab, Danish Polymer Ctr, DK-4000 Roskilde, Denmark

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 404卷

关键词：

intermetallics; hydrogen storage materials; gas-solid reactions; X-ray diffraction;

D O I：

10.1016/j.jallcom.2005.01.119

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：

The interaction of hydrogen with an Mg-Al alloy pre-exposed to air have been studied with in situ time resolved X-ray powder diffraction. Phase fractions as a function of time are derived from series of consecutive diffraction patterns allowing kinetic analysis. The apparent activation energy for dehydrogenation of the Mg-Al alloy is found to be 160 kJ/mol. This is not significantly higher than for pure and fully activated Mg. It is suggested that the addition of Al improves the resistance towards oxygen contamination. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：323 / 326

页数：4

共 13 条

[1] THE HYDROGEN STORAGE PROPERTIES AND THE MECHANISM OF THE HYDRIDING PROCESS OF SOME MULTICOMPONENT MAGNESIUM-BASE HYDROGEN STORAGE ALLOYS
AU, M
WU, J
WANG, QD
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1995, 20 (02) : 141 - 150
[2] First-principles study of hydrogen diffusion in α-Al2O3 and liquid alumina -: art. no. 024302
Belonoshko, AB
Rosengren, A
Dong, Q
Hultquist, G
Leygraf, C
[J]. PHYSICAL REVIEW B, 2004, 69 (02)
[3] Hydriding behavior of Mg-Al and leached Mg-Al compounds prepared by high-energy ball-milling
Bouaricha, S
Dodelet, JP
Guay, D
Huot, J
Boily, S
Schulz, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 297 (1-2) : 282 - 293
[4] Comparative study of mechanical alloying of (Mg plus Al) and (Mg plus Al plus Ni) mixtures for hydrogen storage
Bououdina, M
Guo, ZX
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 336 (1-2) : 222 - 231
[5] INSITU CELL FOR COMBINED XRD AND ONLINE CATALYSIS TESTS - STUDIES OF CU-BASED WATER GAS SHIFT AND METHANOL CATALYSTS
CLAUSEN, BS
STEFFENSEN, G
FABIUS, B
VILLADSEN, J
FEIDENHANSL, R
TOPSOE, H
[J]. JOURNAL OF CATALYSIS, 1991, 132 (02) : 524 - 535
[6] Fernández JF, 2003, J ALLOY COMPD, V356, P348, DOI [10.1016/S0925-8388(02)01228-8, 10.1016/S0925-8388(02)02118-8]
[7] Rate determining step in the absorption and desorption of hydrogen by magnesium
Fernández, JF
Sánchez, CR
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 340 (1-2) : 189 - 198
[8] JENSEN TR, UNPUB INT J HYDROGEN
[9] MAGNESIUM FOR HYDROGEN STORAGE
PEDERSEN, AS
KJOLLER, J
LARSEN, B
VIGEHOLM, B
[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1983, 8 (03) : 205 - 211
[10] Schlapbach Louis, 1992, TOPICS APPL PHYS, V67

← 1 2 →