DEVELOPMENT OF Co - B / MAGNESITE CATALYST FOR HYDROGEN GENERATION BY HYDROLYSIS OF SODIUM BOROHYDRIDE

Abstract

The Co-B supported on magnesite catalyst was developed by impregnation-reduction method. The catalyst was characterized by XRD, SEM, EDS and XRF. The effects of catalyst amount, NaBH₄ concentration and reaction temperature on the hydrogen generation rate were investigated. The hydrogen generation rate was obtained as 29000 mL/ min g_Co at 50 ºC. The activation energy of hydrolysis reaction was estimated be 68.56 kJ/mol. The Co-B/magnesite is a promising catalyst for the hydrolysis of sodium borohydride.

Keywords

• generation of hydrogen,sodium borohydride hydrolysis,magnesite catalyst

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