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SURFACE-MODIFIED AB5 ALLOYS WITH ENHANCED HYDROGEN ABSORPTION KINETICS

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Carbon Nanomaterials in Clean Energy Hydrogen Systems

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Abstract

Surface engineering approaches were adopted in the preparation of advanced materials based on “low-temperature” AB5 hydride-forming intermetallide. The approaches used included micro-encapsulation with palladium, as well as with palladium-containing mixed coatings. The influence of these modifications on surface morphology and hydro-genation characteristics of the material were investigated. It was found that palladium-nickel encapsulation improves the hydrogenation kinetics of the intermetallide in the absorption of hydrogen at low pressure and room temperature, and after long-term pre-exposure to air. The developed surface-modified materials may potentially find their application in highly-selective hydrogen extraction and purification processes

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Author information

Authors and Affiliations

  1. South African Institute for Advanced Materials Chemistry, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa

    M. Williams, M. Lototsky, A. Nechaev & V. Linkov

  2. Institute for Energy Technology, POB 40, Kjeller, N-2027, Norway

    V. Yartys

  3. Guangzhou Research Institute for Non-Ferrous Metals, Guangzhou, 510651, China

    Q. Li

Authors
  1. M. Williams
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  2. M. Lototsky
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  3. A. Nechaev
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  4. V. Linkov
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  5. V. Yartys
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  6. Q. Li
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Editor information

Editors and Affiliations

  1. Institute of Physical Chemistry of PAS, Warsaw, Poland

    Bogdan Baranowski

  2. Institute of Hydrogen and Solar Energy, Kiev, Ukraine

    Svetlana Yu. Zaginaichenko

  3. Institute for Problems of Materials Science of NAS, Kiev, Ukraine

    Dmitry V. Schur  & Valeriy V. Skorokhod  & 

  4. International Association for Hydrogen Energy, University of Miami, Miami, USA

    Ayfer Veziroglu

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Williams, M., Lototsky, M., Nechaev, A., Linkov, V., Yartys, V., Li, Q. (2008). SURFACE-MODIFIED AB5 ALLOYS WITH ENHANCED HYDROGEN ABSORPTION KINETICS. In: Baranowski, B., Zaginaichenko, S.Y., Schur, D.V., Skorokhod, V.V., Veziroglu, A. (eds) Carbon Nanomaterials in Clean Energy Hydrogen Systems. NATO Science for Peace and Security Series C: Environmental Security. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8898-8_78

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