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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
energy
Combustion-type hydrogenation of nanostructured Mg-based composites for hydrogen storage
International Journal of Energy Research, Volume 33, No. 13, Year 2009
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Description
In this study Reactive Ball Milling in hydrogen gas was used to synthesize nanostructured hydrogenated composites of Mg and V-based alloy. After hydrogen desorption, the nanocomposites exhibited a dramatic facilitation of the rate of H absorption by Mg and reduction of the temperature of onset of hydrogenation. These favourable changes were caused by a synergy of catalytic effect of the V-based alloy on hydrogen absorption by Mg and heat release caused by exothermic hydrogen absorption by the V-based alloy. When the initial interaction temperature exceeded a threshold, rather low, value of 20-12°C, depending on the H2 pressure, composition of the sample and its total amount, a combustion-type hydrogenation took place. With optimal interaction parameters applied, H absorption was completed in just 5-70 s and was accompanied by a significant heat release. The observed features can be utilized to reach fast recharge of the Mg-based H stores and to develop efficient heat management systems. Copyright © 2009 John Wiley & Sons, Ltd.
Authors & Co-Authors
Lototskyy, Mykhaylo
South Africa, Bellville
University of the Western Cape
Denys, Roman V.
Norway, Skedsmokorset
Institutt for Energiteknikk
Ukraine, Lviv
Karpenko Physico-mechanical Institute of the Nas of Ukraine
Yartys, Volodymyr A.
Norway, Skedsmokorset
Institutt for Energiteknikk
Statistics
Citations: 25
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1002/er.1604
ISSN:
0363907X
e-ISSN:
1099114X