Investigation of synthesis, characterization and catalytic effect on hydrogen production of silica supported-Ni(II)-salicylaldimine complex

For preparing SiO2 supported Ni (II)-Schiff Base complex, Ni (II)-Schiff Base complex, which was synthesized in our previous work, was used and supported on SiO2. This SiO2 supported complex was used as a catalyst in hydrolysis reaction of NaBH4 for hydrogen production, to look at its catalytic activity. The structure of this prepared catalyst was illuminated by spectroscopic methods such as FT-IR, SEM, XRD, BET analysis. The SiO2 supported Ni(II)-Schiff complex catalyzed hydrolysis reaction was investigated depending on the concentration of NaOH and NaBH4, amount of catalyst percentage of Ni (II) -Schiffe complex in the SiO2 supported Ni (II)-Schiff complex complex catalyst and the temperature. The maximum reaction rate (R0) for the hydrolysis reaction of NaBH4 is 13005 mL H2 g -1. min, the activation energy of the reaction (Ea) is 16,633 kJ/mol, and the reaction rate n is 0.3