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SOME PHYSICAL ASPECTS OF BCC HYDROGEN STORAGE ALLOYS

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Carbon Nanomaterials in Clean Energy Hydrogen Systems

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Abstract

Hydrogen absorption/desorption has been investigated in the three series of solid solution bcc alloys and It has been found that H absorption at pressures smaller than one bar can only occur after elimination of the oxide films by heating the alloys to temperatures higher than 600 K. Hydrogen desorption from pre-loaded materials (nH = H/Me ≥ 0.27) takes place on heating at much lower temperatures in the than in the alloys. The H diffusion parameters W and Do deduced from high temperature (>450 K) absorption experiments are: The higher value of the activation energy for H diffusion in Mo containing alloys is most likely due to H trapping by Mo atoms.

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Author information

Authors and Affiliations

  1. University of Perugia, Department of Physics, Via A. Pascoli 5, Perugia, 06123, Italy

    G. Mazzolai

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  1. G. Mazzolai
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Correspondence to G. Mazzolai .

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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Mazzolai, G. (2008). SOME PHYSICAL ASPECTS OF BCC HYDROGEN STORAGE ALLOYS. 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_14

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