Hydrogen diffusion and effect of grain size on hydrogenation kinetics in magnesium hydrides

Yao, X., Zhu, Z. H., Cheng, H. M. and Lu, G. Q. (2008) Hydrogen diffusion and effect of grain size on hydrogenation kinetics in magnesium hydrides. Journal of Materials Research, 23 2: 336-340. doi:10.1557/JMR.2008.0063


Author Yao, X.
Zhu, Z. H.
Cheng, H. M.
Lu, G. Q.
Title Hydrogen diffusion and effect of grain size on hydrogenation kinetics in magnesium hydrides
Journal name Journal of Materials Research   Check publisher's open access policy
ISSN 0884-2914
Publication date 2008-02-01
Year available 2008
Sub-type Article (original research)
DOI 10.1557/JMR.2008.0063
Open Access Status
Volume 23
Issue 2
Start page 336
End page 340
Total pages 5
Editor Gordon E. Pike
Place of publication Warrendale, PA., U.S.A.
Publisher Materials Research Society
Language eng
Subject C1
850606 Hydrogen Storage
100708 Nanomaterials
Abstract Hydrogenation and dehydrogenation of metal hydrides are of great interest because of their potential in on-board applications for hydrogen vehicles. This paper aims to study hydrogen diffusion in metal hydrides, which is generally considered to be a controlling factor of hydrogenation/dehydrogenation. The present work first calculated temperature-dependent hydrogen diffusion coefficients by a theoretical model incorporated with experimental data in a Mg-based system and accordingly the activation energy. The grain size effect on diffusion in nanoscale was also investigated.
Keyword Materials Science, Multidisciplinary
Materials Science
MATERIALS SCIENCE, MULTIDISCIPLINARY
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Tue, 07 Apr 2009, 22:18:37 EST by Vicki Thompson on behalf of School of Chemical Engineering