Effect of phosphoric acid and acetic acid addition on the hydrogen evolution using Ni based catalyst prepared in ethanol, methanol, and water solvents

ABSTRACT

Ni-based catalysts were synthesized in water, methanol and ethanol solvents by chemical reduction with sodium borohydride (NaBH₄). The obtained catalyst for the first time was used to catalyze the NaBH₄ hydrolysis reaction with phosphoric acid and acetic acid including different concentrations. The maximum hydrogen production rates obtained in the hydrolysis reaction including 0.5 M phosphoric acid and 0.1 M acetic acid of the Ni-based catalyst prepared in ethanol solvent were 5214 and 3650 ml g⁻¹ min⁻¹, respectively.

KEYWORDS:

• Acetic acid
• ethanol
• nickel catalyst
• phosphoric acid
• sodium borohydride

Acknowledgments

The authors are grateful to the Research Foundation of Siirt University for financial support under Project 2017-SİÜMÜH-26.

Additional information

Funding

This work was supported by the Research Foundation of Siirt University [2017-SİÜMÜH-26.];