Mechano-chemical Synthesis of NaAlH4: Optimization of Reaction Conditions

Won Bi Han, Ki Kwang Bae, Kyoung Soo Kang, Seoung Uk Jeong, Won Chul Cho, Chang Hee Kim, Chu Sik Park

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Abstract

NaAlH4 was mechano-chemically synthesized with high energy ball-milling method. The effect of synthesis conditions such as milling time, H2 pressure, chloride catalysts, and solvents was investigated to enhance the synthesis of NaAlH4. Among the chloride catalysts, TiCl4 showed the highest H2 pressure decrease which means the highest NaH conversion to NaAlH4. Furthermore, when the NaAlH4 was synthesized with THF solvent, it exhibited the higher H2 pressure decrease than that of sample prepared without THF solvent. This is mainly due to the synergy effect of TiCl4 catalyst and THF solvent.

Original languageEnglish
Article number06064
JournalMATEC Web of Conferences
Volume67
DOIs
StatePublished - 29 Jul 2016
EventInternational Symposium on Materials Application and Engineering, SMAE 2016 - Chiang Mai, Thailand
Duration: 20 Aug 201621 Aug 2016

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