Hydrogen generation from NaBH4 hydrolysis using Co-B/AlPO4 and Co-B/bentonite catalysts

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Abstract

Aluminium phosphate and bentonite supported Co-B catalyst were synthesized via two step impregnation-reduction method for sodium borohydride hydrolysis. The synthesized catalysts were characterized by XRD, FTIR, XPS, FE-SEM, FE-TEM, BET, ICP-AES techniques and tested for NaBH4 hydrolysis reaction. The results demonstrated that the synthesized supported Co-B catalysts greatly facilitate the NaBH4 hydrolysis reaction. Highest hydrolysis rate observed for Co-B/AlPO4 and Co-B/bentonite catalysts are 6.50 and 3.91 L min−1 g−1, respectively, with 2 wt% NaBH4, 5 wt% NaOH solution at 30 °C. The hydrogen generation rate was found to increase with experimental temperature. Activation energy for the hydrolysis reaction was observed to be 37 and 40.2 kJ mol−1 for Co-B/AlPO4 and Co-B/bentonite catalysts, respectively.

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Manna, J., Roy, B., Pareek, D., & Sharma, P. (2017). Hydrogen generation from NaBH4 hydrolysis using Co-B/AlPO4 and Co-B/bentonite catalysts. Catalysis, Structure and Reactivity, 3(4), 157–164. https://doi.org/10.1080/2055074X.2017.1344793

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