OXIDATION OF CYCLOHEXENE BY H2O2 USING CATALYST 5, 10, 15, 20 TETRA PHENYL PORPHYRINATO Mn (III) cl
Dr. Richa Yadav
Chemistry
September 2023
The primary goals of this study were to determine the optimal concentration of Tetra Phenyl Porphyrinato Mn(III) Cl (TPP-MnCl) to maximize the reaction rate in the oxidation of cyclohexene and to investigate the possibility of regenerating TPP-MnCl and its effects on sustained catalytic activity.The first target was achieved by systematically adjusting TPP-MnCl concentration from 0.1 to 1.0 M while maintaining reaction conditions. The reaction rate rose with TPP-MnCl concentration, peaking at 15 mM (0.32 mol/min) before dropping. This discovery determined the optimal TPP-MnCl concentration for cyclohexene oxidation reaction rate. The second goal was to analyse TPP-MnCl regeneration following catalytic cycles. Regeneration procedures included light heat treatment, chemical regeneration, and re-synthesis. TPP-MnCl could be regenerated to varied degrees, with the most extensive re-synthesis procedure returning 93% activity. The catalyst's activity dropped to 88% without regeneration, demonstrating the importance of regeneration for long-term catalytic activity. This research sheds information on optimizing TPP-MnCl concentration for faster reaction rates and the possibility for regeneration to preserve catalytic activity. These discoveries improve our understanding of chemical reaction catalysis and suggest sustainable catalysis applications.
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