Fast hydrogen sorption kinetics of nanocrystalline Mg using Nb2O5 as catalyst

被引：576

作者：

Barkhordarian, G ^{[1
]}

Klassen, T ^{[1
]}

Bormann, R ^{[1
]}

机构：

[1] Geesthacht GmbH, GKSS Res Ctr, Inst Mat Res, Dept Mat Res, D-21502 Geesthacht, Germany

来源：

SCRIPTA MATERIALIA | 2003年 / 49卷 / 03期

关键词：

hydrogen storage; magnesium; nanocrystalline microstructure; kinetics; catalysis; ABSORPTION PROPERTIES; METAL-OXIDES; SURFACES;

D O I：

10.1016/S1359-6462(03)00259-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The efficiency of Nb2O5 as a catalyst for hydrogen sorption reaction of magnesium is investigated. Absorption and desorption kinetics are determined at 250 and 300 degreesC and are compared to other metal and oxide catalysts. The results demonstrate that the catalytic effect of Nb2O5 is superior in absorption as well as desorption. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：213 / 217

页数：5

共 14 条

[1] Mechanically milled Mg composites for hydrogen storage - The transition to a steady state composition
Gross, KJ
Spatz, P
Zuttel, A
Schlapbach, L
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 240 (1-2) : 206 - 213
[2] THE SURFACES OF METAL-OXIDES
HENRICH, VE
[J]. REPORTS ON PROGRESS IN PHYSICS, 1985, 48 (11) : 1481 - 1541
[3] ULTRAVIOLET PHOTOEMISSION-STUDIES OF MOLECULAR ADSORPTION ON OXIDE SURFACES
HENRICH, VE
[J]. PROGRESS IN SURFACE SCIENCE, 1979, 9 (5-6) : 143 - 164
[4] Investigation of dehydrogenation mechanism of MgH2-Nb nanocomposites
Huot, J
Pelletier, JF
Lurio, LB
Sutton, M
Schulz, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 348 (1-2) : 319 - 324
[5] Hydrogen absorption properties of a mechanically milled Mg-50wt%LaNi5 composite
Liang, G
Boily, S
Huot, J
Van Neste, A
Schulz, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 268 (1-2) : 302 - 307
[6] Mechanical alloying and hydrogen absorption properties of the Mg-Ni system
Liang, G
Boily, S
Huot, J
Van Neste, A
Schulz, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1998, 267 (1-2) : 302 - 306
[7] Comparison of the catalytic effects of V,V2O5, VN, and VC on the hydrogen sorption of nanocrystalline Mg
Oelerich, W
Klassen, T
Bormann, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 322 (1-2) : L5 - L9
[8] Metal oxides as catalysts for improved hydrogen sorption in nanocrystalline Mg-based materials
Oelerich, W
Klassen, T
Bormann, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 315 (1-2) : 237 - 242
[9] Schulz R., 1995, Innovation in Metallic Materials, P529
[10] Schulz R., 1999, Can. Pat., Patent No. 2207149

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