Local atomic structural investigations of precursory phenomenon of the hydrogen release from LiAlD4

Journal Article · Tue Jan 01 00:00:00 EST 2013 · Journal of Alloys and Compounds

OSTI ID:1104818

Sato, Toyoto ^[1]; Tomiyasu, Dr. Keisuke ^[2]; Ikeda, Kazutaka ^[3]; Otomo, Toshiya ^[1]; Feygenson, Mikhail ^[1]; Neuefeind, Joerg C ^[1]; Yamada, Kazuyoshi ^[4]; Orimo, Shin-ichi ^[4]

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1. ORNL
2. Tohoku University, Japan
3. High Energy Accelerator Research Organization, KEK
4. Institute for Materials Research, Tohoku University, Sendai, Japan

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.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
• Sponsoring Organization: USDOE
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1104818
• Journal Information: Journal of Alloys and Compounds, Vol. 586, Issue 2014
• Country of Publication: United States
• Language: English