Study on decomposition process of NaAlH4 by in-situ TEM
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.
収録刊行物
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- International Journal of Hydrogen Energy
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International Journal of Hydrogen Energy 35 (14), 7563-7567, 2010-07
Elsevier
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詳細情報 詳細情報について
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- CRID
- 1050282677904747264
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- NII論文ID
- 120002342397
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- HANDLE
- 2115/43792
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- ISSN
- 03603199
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- CiNii Articles