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Vol.51, No.8, 615 ~ 620, 2013
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| Title |
| Hydrogen-Storage Properties of Li3N, LiBH4, Fe and/or Ti-Added Mg or MgH2 |
| Myoung Youp Song , Sung Nam Kwon , Young Jun Kwak , Hye Ryoung Park , Byoung Goan Kim |
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| Abstract |
| In order to increase the hydrogen storage performance of Mg or MgH2-based materials, Li3N, LiBH4, Fe, and/or Ti were added. Mixtures with compositions of 50MgH2-50Li3N, 40Mg-10MgH2-50Li3N, 68MgH2-17LiBH4-15Fe, and 70MgH2-17LiBH4-13Ti were prepared by reactive mechanical grinding, and their hydrogen-storage properties were examined. 68MgH2-17LiBH4-15Fe and 70MgH2-17LiBH4-13Ti had higher hydriding rates than the Li3N-containing samples, 50MgH2-50Li3N and 40Mg-10MgH2-50Li3N, at 573 K under 12 bar H2. However, the dehydriding rates of 68MgH2-17LiBH4-15Fe and 70MgH2-17LiBH4-13Ti were as low as those of the Li3N-containing samples at 573 K under 1.0 bar H2. (Received December 18, 2012) |
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| Key Words |
| hydrogen absorbing materials, mechanical alloying, milling, microstructure, X-ray diffraction, Li3N and LiBH4 addition |
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