Direct formation of Na3AlH6 by mechanical milling NaH/Al with TiF3
作者： P. Wang , X. D. Kang , H. M. Cheng
DOI: 10.1063/1.2001756
关键词: Inorganic chemistry 、 Materials preparation 、 Hydrogen atmosphere 、 Chemical engineering 、 Zirconium 、 Dehydrogenation 、 Mechanical milling 、 Decomposition 、 Hydrogen storage 、 Sodium aluminum hydride
摘要: Na3AlH6 can be directly formed by mechanical milling NaH/Al with TiF3 under hydrogen atmosphere. The hydrogenation fraction of NaH increases increasing the time, and reaches up to 0.61 after 20 h milling. Thus-formed exhibits unexpected polymorphic transformation decomposition behaviors. This, together unusual storage performance mechanically prepared materials, provides us a suggestive perspective probe favorable modification thermodynamics nature active Ti-species in Ti-doped NaAlH4. (C) 2005 American Institute Physics.
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