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期刊论文
Direct synthesis of nanocrystalline NaAlH4 complex hydridefor hydrogen storage
APPLIED PHYSICS LETTERS 94, 041907 (2009)，-0001，（）：
Nanocrystalline NaAlH4 was directly synthesized by ball milling NaH/Al with TiF3 catalyst underhydrogen pressure of 15-25 bar within 50h. It is found that the synthesized NaAlH4 exhibits a highreversible hydrogen capacity of 4.7wt% with fast reaction kinetics. It can absorb about 3.5 wt %hydrogen even at ambient temperature. The Ti-Al-H active species formed during reactive ballmilling may act as catalyzing agent for hydrogen dissociation/recombination during in situhydrogenation process and subsequent hydriding/dehydriding cycle.
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