Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Hydrogen Generation through the Reaction with Water of MgO, MgCl2 or Ni+Nb2O5 - Added Magnesium Hydrides

  • Hong, Seong-Hyeon (Powder Materials Technology Group, KIMS, Korea Institute of Machinery and Materials) ;
  • Kim, Hyun-Jin (Powder Materials Technology Group, KIMS, Korea Institute of Machinery and Materials) ;
  • Song, Myoung Youp (Division of Advanced Materials Engineering, Department of Hydrogen and Fuel Cells, Hydrogen & Fuel Cell Research Center Engineering Research Institute, Chonbuk National University)
  • Received : 2011.09.22
  • Published : 2012.02.25
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Abstract

Hydrogen was generated by the reaction of metal hydride with water. The variation of hydrogen generation with the kind of powders (milled $MgH_2$, and $MgH_2$ milled with various contents of MgO, $MgCl_2$ or $Ni+Nb_2O_5$) was investigated. $MgH_2$ powder with a hydrogen content of 6.05 wt% from Aldrich Company was used. Hydrogen is generated by the reaction of Mg as well as $MgH_2$ with water, resulting in the formation of byproduct $Mg(OH)_2$. For about 5 min of reaction time, milled $95%MgH_2+5%MgO$ has the highest hydrogen generation rate among milled $MgH_2+x%MgO$ (x=0, 5, 10, 15 and 20) samples. Milled $90%MgH_2+10%MgCl_2$ has the highest hydrogen generation rate among all the samples.

Keywords

Acknowledgement

Supported by : Ministry of Science and Technology

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