Hydrogen absorption study of high-energy reactive ball milled Mg composites with palladium additives

JOURNAL OF ALLOYS AND COMPOUNDS

卷:580

Article

Williams, M.¹  Sibanyoni, J. M.¹  Lototskyy, M.¹  Pollet, B. G.¹ 

[1] Univ Western Cape, South African Inst Adv Mat Chem, Fac Nat Sci, ZA-7535 Bellville, South Africa

关键词: Composite materials;    Magnesium hydride;    Mechanochemical processing;    Kinetics;    X-ray diffraction;   

DOI  :  10.1016/j.jallcom.2013.01.086

来源: Elsevier

【 摘 要 】

Hydrogenation behaviour, structure, morphology and dehydrogenation/re-hydrogenation performances of Mg-Pd nanocomposites prepared by high-energy reactive ball milling in H-2 (HRBM) of Mg in the presence of amorphous and crystalline Pd black (0.1-5 wt.%) were studied. Improvements of hydrogenation kinetics during HRBM were observed only for the materials prepared using crystalline Pd black. The obtained nanocomposites were characterised by modest improvements in their dehydrogenation and re-hydrogenation performances associated with the formation of Mg-Pd intermetallides. (C) 2013 Elsevier B.V. All rights reserved.

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