Structural and Hydrogen Desorption Properties of Aluminum Hydride

Kazutaka Ikeda; Hidetoshi Ohshita; Naokatsu Kaneko; Junrong Zhang; Masao Yonemura; Toshiya Otomo; Kentaro Suzuya; Hiroshi Yukawa; Masahiko Morinaga; Hai-Wen Li; Satoshi Semboshi; Shin-ichi Orimo

doi:10.2320/matertrans.MA201019

Kazutaka Ikeda, Hidetoshi Ohshita, Naokatsu Kaneko, Junrong Zhang, Masao Yonemura, Toshiya Otomo, Kentaro Suzuya, Hiroshi Yukawa, Masahiko Morinaga, Hai-Wen Li, Satoshi Semboshi, Shin-ichi Orimo

Author information

Kazutaka Ikeda
Institute of Materials Structure Science, KEK
Hidetoshi Ohshita
Institute of Materials Structure Science, KEK
Naokatsu Kaneko
Institute of Materials Structure Science, KEK
Junrong Zhang
Institute of Materials Structure Science, KEK
Masao Yonemura
Institute of Materials Structure Science, KEK
Toshiya Otomo
Institute of Materials Structure Science, KEK
Kentaro Suzuya
J-PARC Center, Japan Atomic Energy Agency
Hiroshi Yukawa
Graduate School of Engineering, Nagoya University
Masahiko Morinaga
Graduate School of Engineering, Nagoya University
Hai-Wen Li
Institute for Materials Research, Tohoku University
Satoshi Semboshi
Institute for Materials Research, Tohoku University
Shin-ichi Orimo
Institute for Materials Research, Tohoku University

Keywords: hydrogen, hydride, aluminum, X-ray diffraction, neutron diffraction

JOURNAL FREE ACCESS

2011 Volume 52 Issue 4 Pages 598-601

DOI https://doi.org/10.2320/matertrans.MA201019

View "Advance Publication" version (March 2, 2011).

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Abstract

The structural and hydrogen/deuterium desorption properties of AlH₃/AlD₃ were investigated by Raman spectroscopy, high-intensity X-ray/neutron diffraction, and thermogravimetric analysis. The latter revealed that more than 9.6 mass% of hydrogen/18.1 mass% of deuterium desorbs from AlH₃/AlD₃, respectively. The presence of χ-Al₂O₃ on the surface may prevent the hydrogen/deuterium desorption reaction of AlH₃/AlD₃ to Al at room temperature.

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