Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Hydriding Behavior of an Mg-xNi Alloys Prepared in Hydriding Combustion Synthesis

수소화 연소합성법을 이용한 Mg-xNi 금속수소화물의 수소저장특성에 관한 연구

  • Kim, Ji-Ho (Department of Material Science & Engineering, Han-Yang Univ.) ;
  • Choi, Duck-Kyun (Department of Material Science & Engineering, Han-Yang Univ.) ;
  • Hwang, Kwang-Taek (Korea Institute of Ceramic Engineering & Technology) ;
  • Han, Jeong-Sub (Department of Material Science & Engineering, Dong-A Univ.) ;
  • Kim, Jin-Ho (Korea Institute of Ceramic Engineering & Technology)
  • Received : 2010.01.19
  • Accepted : 2010.04.20
  • Published : 2010.04.30
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Abstract

Hydriding combustion synthesis (HCS) can produce full hydrides of alloys and in a short time. The conventional process based on ingot metallurgy cannot produce Mg-based alloy easily with the desired composition and the cast product needs a ling activation process for the practical use of hydrogen storage. In this study, the hydriding properties of Mg-xNi (x=5, 13.5, 54.7wt.%) alloys prepared by hydriding combustion synthesis were evaluated. The hydrogen storage capacity and kinetics of HCS Mg-xNi alloys were strongly dependent on the content of Ni. The HCS Mg-13.5wt.%Ni alloy shows the hydriding behavior to reach the maximum capacity within 30 min. and the reversible $H_2$ storage of 5.3wt.% at 623 K.

Keywords

References

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