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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Direct observation of ion exchange in mechanically activated LiH+MgB2 system using ultrahigh field nuclear magnetic resonance spectroscopy

Cited 14 times inthomson ciCited 13 times inthomson ci
Title
Direct observation of ion exchange in mechanically activated LiH+MgB2 system using ultrahigh field nuclear magnetic resonance spectroscopy
Other Titles
Direct observation of ion exchange in mechanically activated LiH+MgB2 system using ultrahigh field nuclear magnetic resonance spectroscopy
Author
Hu, Jian ZhiKwak, JahunYang, ZhenguoWan, XuefeiShaw, Leon L.
Keywords
HYDROGEN-STORAGE MATERIALS; LITHIUM BOROHYDRIDE; COMPLEX HYDRIDES; H SYSTEMS; LIBH4; LI
Issue Date
2009-04
Publisher
AMER INST PHYSICS
Citation
APPLIED PHYSICS LETTERS, v.94, no.14, pp.141905 -
Abstract
The LiBH4+MgH2 system has great potential for hydrogen vehicle applications. In this study, the reported solid-state hydrogenation system made of LiH+1/2MgB(2) has been investigated using ultrahigh field nuclear magnetic resonance spectroscopy. It is found that Mg-Li ion exchange occurs within MgB2 during ball milling to form a compound of (Mg1-xLi2x)B-2, which facilitates the formation of LiBH4 in the subsequent hydriding reaction. This discovery offers a scientific foundation for investigating the detailed mechanisms of solid-state hydrogenation and dehydrogenation of the LiBH4+MgH2 system in the future
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DOI
10.1063/1.3110966
ISSN
0003-6951
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ECHE_Journal Papers
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