Effect of pH and Temperature on the Electrochemical Reduction of Carbon Dioxide by Carbon Monoxide Dehydrogenase

The effects of experimental variables for the electrochemical reduction of carbon dioxide by Carbon Monoxide Dehydrogenase (CODH) were investigated. It shows the pH optimum at 6.3 where the feasibility of electro-chemical reduction and the stability of CODH compromise each other. The optimum temperature for the reduction was at where the enzyme shows the optimum activity although the solubility of carbon dioxide decreases as increasing temperature.