Improvement of hydrogen storage characteristics of Mg by planetary ball milling under H2 with metallic element(s) and/or Fe2O3

Autor: Myoung Youp Song, Jean-Louis Bobet, Daniel R. Mumm, Hye Ryoung Park, Sung-Nam Kwon
Přispěvatelé: Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Chonbuk National University-Engineering Research Institute, Department of Hydrogen and Fuel Cells, Chonbuk National University, Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), Faculty of Applied Chemical Engineering, Chonnam National University, Department of Chemical Engineering and Materials Science, University of California [Irvine] (UCI), University of California-University of California
Rok vydání: 2011
Předmět:
Zdroj: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2011, 36 (5), pp.3521-3528. ⟨10.1016/j.ijhydene.2010.12.059⟩
ISSN: 0360-3199
Popis: International audience; Among samples of Mg-Ni, Mg-Ni-5Fe2O3, and Mg-Ni-5Fe, Mg-Ni-5Fe had the highest hydriding and dehydriding rates. For the as-milled Mg-Ni-5Fe alloy and the hydrided Mg-Ni-5Fe alloy after activation, the weight percentages of the constituent phases were calculated using the FullProf program. The creation of defects and the diminution of Mg particle size through reactive mechanical grinding and hydriding-dehydriding cycling, and the formation of the Mg2Ni phase are considered to increase the hydriding and dehydriding rates. Mg-14Ni-2Fe-2Ti-2Mo had higher hydriding and dehydriding rates than did any of the other samples (Mg-Ni, Mg-Ni-5Fe2O3, Mg-Ni-5Fe, and Mg-14Ni-6Fe2O3) prepared in this work.
Databáze: OpenAIRE