| Title |
Hydrogen-Storage Properties of Li3N, LiBH4, Fe and/or Ti-Added Mg or MgH2 |
| Authors |
(Myoung Youp Song); (Sung Nam Kwon); (Young Jun Kwak); (Hye Ryoung Park); (Byoung Goan Kim) |
| DOI |
https://doi.org/10.3365/KJMM.2013.51.8.615 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
hydrogen absorbing materials; mechanical alloying; milling; microstructure; X-ray diffraction; Li3N and LiBH4 addition |
| 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) |