Catalytic activity of cobalt-boron-fluoride particles with different solvent mediums on sodium borohydride hydrolysis for hydrogen generation

Catalysts prepared in a different solvent medium have different activities because of its different acidity, basicity and viscosity properties. The synthesis mechanism of cobalt-boron-fluoride in water, propanol and ethanol solvents was evaluated. Characterization studies of cobalt-boron-fluoride catalyst were performed with Brunauer-Emmett-Teller surface area, X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy- energy dispersive x-ray spectroscopy measurements. The effects of sodium borohydride (SB), and temperature on the SB hydrolysis reaction with the catalyst samples were studied. The maximum hydrogen generation rate (HGRs) of the cobalt-boron (ethanol solvent) and cobalt-boron-fluoride (ethanol solvent) catalysts were 1942 and 4533 mlmin(-1)g(-1), respectively. The activation energy was 32.45 kJ mol(-1).

Automated summary

Catalysts prepared in different solvent mediums exhibit varying activities due to differences in acidity, basicity, and viscosity. Evaluation of the synthesis mechanism of cobalt-boron-fluoride in water, propanol, and ethanol solvents was conducted, with characterization studies performed using various techniques. The effects of sodium borohydride (SB) and temperature on SB hydrolysis reaction were investigated, with the maximum hydrogen generation rates and activation energy of the catalysts determined.