Numerical and experimental analysis of hydrogen desorption properties of MMNI 5-based hydrogen storage alloy degraded by water vapor

Hideyuki Aoki, Yutaka Sangu, Toshiyuki Hirosawa, Satoshi Kikuchi, Yohsuke Matsushita, Takatoshi Miura, Yoshiaki Kawakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, hydrogen desorption behavior of hydrogen storage MmNi 5-based alloy degraded by water vapor is investigated numerically and experimentally. The single particle reaction of hydrogen and the surface layer of alloys degraded by water vapor is treated in details and the model in hydrogen desorption process is proposed by examining some mathematical modelling and calculation. As a result, experimental data are in good agreement with calculated ones. It can be estimated that the desorption process in degraded hydrogen storage alloys is controlled by surface process in oxide layer.

Original languageEnglish
Title of host publication17th World Hydrogen Energy Conference 2008, WHEC 2008
Pages566-570
Number of pages5
Publication statusPublished - 2008
Event17th World Hydrogen Energy Conference 2008, WHEC 2008 - Brisbane, QLD, Australia
Duration: 2008 Jun 152008 Jun 19

Publication series

Name17th World Hydrogen Energy Conference 2008, WHEC 2008
Volume1

Other

Other17th World Hydrogen Energy Conference 2008, WHEC 2008
CountryAustralia
CityBrisbane, QLD
Period08/6/1508/6/19

Keywords

  • Hydrogen desorption model
  • Hydrogen storage alloys
  • Water vapor

ASJC Scopus subject areas

  • Forestry
  • Plant Science

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