Hydrogen generation by hydrolysis of ammonia borohydride using the Nano-Bimetallic catalyst

Abstract

Ammonia boron is one of the chemical compounds with high energy density that eliminates the problem of storing hydrogen, a clean energy source. Ammonia borane (NH3BH3), one of the chemical hydrogen storage compounds; High hydrogen capacity (19.6% H2 by mass) has a very important place in hydrogen fuel technology due to its stable structure in its aqueous solution. The main parameter determining the ammonia borane hydrolysis, hydrogen production efficiency and reaction course is catalyst. Different structures and methods are used for catalyst production. One of these methods is catalysts produced from transition metal complexes with high catalytic effect and low cost. This study focuses on the hydrolysis of hydrogen production parameters from ammonia borane through the synthesized Co-Cr-B catalyst using the low cost of cobalt (Co) and chromium (Cr). The synthesized Co-Cr-B catalyst was interacted with the ammonia borane solution. Later, optimum conditions for the hydrolysis of ammonia bora were determined by catalyst amount, different NaOH concentration and catalytic activity at different temperatures. Reaction kinetics were examined based on the data obtained. The activation energy of the reaction was 22.3 kJ mol-1, the degree of reaction was determined as the 1st degree.

Keywords

• Ammonia borane
• Co-Cr-B
• Hydrogen
• Nanocatalyst
• Hydrolysis

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