대한금속재료학회지 (Korean Journal of Metals and Materials)

  • 제50권12호
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  • Pages.955-959
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  • 2012
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  • 1738-8228(pISSN)
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  • 2288-8241(eISSN)
대한금속재료학회 (The Korean Institute of Metals and Materials)
권호 표지
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Hydrogen Desorption and Absorption Properties of MgH2, LiBH4, and MgH2 + LiBH4 Composite

  • Park, Hye Ryoung (School of Applied Chemical Engineering, Chonnam National University) ;
  • Song, Myoung Youp (Division of Advanced Materials Engineering, Hydrogen & Fuel Cell Research Center, Engineering Research Institute, Chonbuk National University)
  • 투고 : 2012.05.25
  • 발행 : 2012.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

To increase the hydrogen storage capacity of Mg-based materials, a sample with a composition of 69.7 wt% $MgH_2$ + 30.3 wt% $LiBH_4$ was prepared by planetary ball milling under hydrogen. The absorption and desorption properties of unmilled $MgH_2$, unmilled $LiBH_4$, and 69.7 wt% $MgH_2$ + 30.3 wt% $LiBH_4$ were examined. At 648 K the unmilled $MgH_2$ desorbed 5.70 wt% for 60 min. The unmilled $LiBH_4$ desorbed 6.40 wt% H for 780 min at 673 K. The 69.7 wt% $MgH_2$ + 30.3 wt% $LiBH_4$ sample desorbed 3.10 wt% H for 50 min, and 3.32 wt% H for 300 min at 623 K at the second cycle.

키워드

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