TITLE

Synthesis of Trimethyl Borate: as a Starting Material in Production of Sodium Borohydride (NaBH4) Hydrogen Storage Medium

AUTHOR(S)
Yilmaz, M. Sari; Piskin, S.
PUB. DATE
March 2010
SOURCE
International Review of Chemical Engineering - Rapid Communicati;Mar2010, Vol. 2 Issue 2, p319
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Continues decrease in quantity of the fossil fuel and undesired environmental effects by their usage in energy production made it compulsory going towards to newer and clearer energy production resources. When hydrogen was compared to the recent systems in aspects of cost, environmental effects and efficiency, it pays attention as an alternative energy carrier instead of the fossil fuel systems at the end of Century 21st. Hydrogen can be stored and transported safely in the form of sodium borohydride (NaBH4) due to its high theoretical hydrogen yield by weight (10.6%) in applications where H2 gas is used, e.g., proton exchange membrane (PEM) fuel cells. NaBH4 in aqueous alkaline solutions (pH>11) produces very pure hydrogen gas and sodium borate by using a selective catalysis. NaBH4 can be produced in a variety of ways by using different materials. In this study, trimethyl borate (TMB), used as a starting material in NaBH4 production process was produced with the reaction of boric acid, calcium chloride and methanol. The product was identified as TMB by Gas Chromatography GC-MS analysis qualitatively. Also, the characteristic properties and the purities of TMB-methanol (TMB-M) azeotrope, the reference and product TMB were investigated by using Raman spectroscopy.
ACCESSION #
89743726

 

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