Study on decomposition process of NaAlH4 by in-situ TEM

Isobe, Shigehito; Yao, Hao; Wang, Yongming et al.

International Journal of Hydrogen Energy, 2010, 35(14), 7563-7567

Permalink : https://hdl.handle.net/2115/43792

このアイテムのアクセス数:1,187件（2026-02-12 15:56 集計）

閲覧可能ファイル 

ファイル フォーマット サイズ 閲覧回数 説明
IJHE35-14_7563-7567 pdf 985 KB 1,567

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権
open access
URI
https://hdl.handle.net/2115/43792
タイトル
Study on decomposition process of NaAlH4 by in-situ TEM
著者
Isobe, Shigehito ; Yao, Hao ; Wang, Yongming ; Kawasaki, Hiroshi ; Hashimoto, Naoyuki ; Ohnuki, Somei
e-Rad_Researcher
10564370
著者名
Isobe, Shigehito
著者名
Yao, Hao
著者名
Wang, Yongming
著者名
Kawasaki, Hiroshi
著者名
Hashimoto, Naoyuki
e-Rad_Researcher
10142697
著者名
Ohnuki, Somei
言語
英語
キーワード
NaAlH4
Hydrogen storage
In-situ TEM
Glove bag method
発行日
2010-07
出版者
Elsevier
収録物名
International Journal of Hydrogen Energy
巻(号)
35(14)
ページ
7563-7567
抄録
In-situ transmission electron microscopy (TEM) has been performed to observe decomposition process of sodium alanate (NaAlH4) in this work. NaAlH4 was ground in a glove box under inert gas, and then it was transferred into microscope without exposed to air by Plastic Bag Method. The results of in-situ electron beam diffraction showed that NaAlH4 decomposed to Na3AlH6 + Al, and NaH + Al during heated up to 150, 200℃, respectively. Moreover, we obtained the result of high resolution (HR) TEM images about the decomposition of NaAlH4 by high voltage electron microscopy (HVEM) of 1250 keV. It showed that the porous structures appeared with increase of temperature. This should be from structural defects and/or cavities due to volume change of the phases. It was also shown that Na3AlH6 and Al particles with the grain size of several ten nm were irregularly distributed near the pores.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0360-3199
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.ijhydene.2010.05.001