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

Toyoto Sato; Keisuke Tomiyasu; Kazutaka Ikeda; Toshiya Otomo; Mikhail Feygenson; Jörg Neuefeind; Kazuyoshi Yamada; Shin Ichi Orimo

doi:10.1016/j.jallcom.2013.09.209

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

Toyoto Sato, Keisuke Tomiyasu, Kazutaka Ikeda, Toshiya Otomo, Mikhail Feygenson, Jörg Neuefeind, Kazuyoshi Yamada, Shin Ichi Orimo

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	244-247
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	586
DOIs	https://doi.org/10.1016/j.jallcom.2013.09.209
Publication status	Published - 2014

Keywords

Complex hydride
Hydrogen storage
Local atomic structure
Pair distribution function
Total neutron scattering

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2013.09.209

Cite this

@article{8493d13467f34e8ab0a34723754349b7,

title = "Local atomic structural investigations of precursory phenomenon of the hydrogen release from LiAlD4",

abstract = "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.",

keywords = "Complex hydride, Hydrogen storage, Local atomic structure, Pair distribution function, Total neutron scattering",

author = "Toyoto Sato and Keisuke Tomiyasu and Kazutaka Ikeda and Toshiya Otomo and Mikhail Feygenson and J{\"o}rg Neuefeind and Kazuyoshi Yamada and Orimo, {Shin Ichi}",

note = "Funding Information: The neutron scattering experiment was approved by the Neutron Science Proposal Review Committee of J-PARC/MLF (Proposal No. 2011A0026) and supported by the S-type neutron research project (Proposal No. 2009S06) of IMSS, KEK. Neutron scattering experiments were conducted at the SNS, which is operated with the support from the Division of Scientific User Facilities Office of Basic Energy Sciences, U.S. Department of Energy, under contract DE-AC05-00OR22725 with UT Battelle, LLC. A part of this work was financially supported by the Advanced Fundamental Research on Hydrogen Storage Materials from the New Energy and Industrial Technology Development Organization (NEDO) , the Exploratory Research Program for Young Researchers from Tohoku University and JSPS KAKENHI Grant Numbers 22244039 , 23686101 , 24241034 and 25220911 from the MEXT, Japan. ",

year = "2014",

doi = "10.1016/j.jallcom.2013.09.209",

language = "English",

volume = "586",

pages = "244--247",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Local atomic structural investigations of precursory phenomenon of the hydrogen release from LiAlD4

AU - Sato, Toyoto

AU - Tomiyasu, Keisuke

AU - Ikeda, Kazutaka

AU - Otomo, Toshiya

AU - Feygenson, Mikhail

AU - Neuefeind, Jörg

AU - Yamada, Kazuyoshi

AU - Orimo, Shin Ichi

N1 - Funding Information: The neutron scattering experiment was approved by the Neutron Science Proposal Review Committee of J-PARC/MLF (Proposal No. 2011A0026) and supported by the S-type neutron research project (Proposal No. 2009S06) of IMSS, KEK. Neutron scattering experiments were conducted at the SNS, which is operated with the support from the Division of Scientific User Facilities Office of Basic Energy Sciences, U.S. Department of Energy, under contract DE-AC05-00OR22725 with UT Battelle, LLC. A part of this work was financially supported by the Advanced Fundamental Research on Hydrogen Storage Materials from the New Energy and Industrial Technology Development Organization (NEDO) , the Exploratory Research Program for Young Researchers from Tohoku University and JSPS KAKENHI Grant Numbers 22244039 , 23686101 , 24241034 and 25220911 from the MEXT, Japan.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - Complex hydride

KW - Hydrogen storage

KW - Local atomic structure

KW - Pair distribution function

KW - Total neutron scattering

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