Sodium borohydride formation when Mg reacts with hydrous sodium borates under hydrogen

In this work, we explored the possibility of NaBH 4 synthesis when Mg reacted with hydrous sodium borates under hydrogen. It was found that Mg could react with the water in molten hydrous borates to form MgO and release hydrogen, which can be used for NaBH 4 synthesis. Then remained Mg would react w...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 476; no. 1; pp. L16 - L20
Main Authors Liu, Bin Hong, Li, Zhou Peng, Zhu, Jing Ke
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 12.05.2009
Elsevier
Subjects
Anhydrous sodium borate
Cross-disciplinary physics: materials science; rheology
Crystalline water
Exact sciences and technology
Hydrous sodium borate
Materials science
Materials synthesis; materials processing
NaBO 2 conversion rate
Physics
Sodium borohydride formation
Sodium borohydride formation
Hydrous sodium borate
Crystalline water
Anhydrous sodium borate
NaBO 2 conversion rate
Experimental result
Sodium Borates
Anhydrous compound
NaBO
Moisture
conversion rate
Sodium compounds
Borates
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Summary:In this work, we explored the possibility of NaBH 4 synthesis when Mg reacted with hydrous sodium borates under hydrogen. It was found that Mg could react with the water in molten hydrous borates to form MgO and release hydrogen, which can be used for NaBH 4 synthesis. Then remained Mg would react with formed anhydrous borate to form NaBH 4. NaBO 2 conversion rate was decreased with increase of the crystalline water content in the hydrous sodium borates. Based on experimental results, a mechanism of NaBH 4 formation when Mg reacted with hydrous sodium borates was suggested.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2008.09.057