Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 586, Issue -, Pages 244-247Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.09.209
Keywords
Hydrogen storage; Complex hydride; Local atomic structure; Total neutron scattering; Pair distribution function
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Funding
- Neutron Science Proposal Review Committee of J-PARC/MLF [2011A0026]
- S-type neutron research project of IMSS, KEK [2009S06]
- Division of Scientific User Facilities Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC05-00OR22725]
- UT Battelle, LLC
- New Energy and Industrial Technology Development Organization (NEDO)
- Tohoku University
- JSPS KAKENHI [22244039, 23686101, 24241034 and 25220911]
- MEXT, Japan
- Grants-in-Aid for Scientific Research [23686101] Funding Source: KAKEN
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Local atomic structural investigations of LiAlD4, which is composed of Li+ and [AlD4] , at 40-300 K were studied by total neutron scattering combined with pair distribution function (PDF) analysis for understanding of hydrogen release from LiAlD4. The results showed that the Al-D pair distribution almost unchanged, while the Li-D pair distribution clearly started to broaden and shrink above 200-250 K. The shrinking of the Li-D pair distribution might lead to the local generation of LiD, which was speculated as the precursory phenomenon for the hydrogen release from LiAlD4. (C) 2013 Elsevier B.V. All rights reserved.
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