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TitleRegeneration of sodium borohydride from sodium metaborate, and isolation of intermediate compounds
Publication TypeJournal Article
Year of Publication2009
AuthorsKemmitt, T., and Gainsford G.J.
JournalInternational Journal of Hydrogen Energy
Pagination5726 - 5731
Date Published2009
ISSN03603199 (ISSN)
KeywordsDiglyme, hydrogen, Hydrogen storage, Hydrolysis products, Intermediate compound, NMR studies, Refluxing, Room temperature, Single crystals, Sodium borate, Sodium borohydride, Sodium metaborate, Tetra-hydrofuran, X-ray structural study
AbstractA method for the regeneration of sodium borohydride from its hydrolysis product, sodium borate, is described. The dried borate salt was converted to a series of sodium tetraalkoxyborates prior to reaction with NaAlH4 in refluxing diglyme to regenerate sodium borohydride. At room temperature in tetrahydrofuran, the same reactants formed the partial hydrides NaBH3(OR) (R = C1-4 alkyl). Products were characterised by multinuclear 1H, 13C, 11B and 27Al NMR studies. The intermediate alkoxyborate products were confirmed by single crystal X-ray structural studies. © 2009 International Association for Hydrogen Energy.

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