Electrogeneration Of H2O2 in Acid Medium Using Catalysts Modified with Manganese II Phthalocyanine Supported in Printex 6L Carbon

Abstract

The electrochemical production of hydrogen peroxide by the oxygen reduction reaction (ORR) is becoming a viable alternative as generation takes place in situ, eliminating any problems of transport and storage. In this paper, we have studied the basis of manganese II phthalocyanine (Ph-Mn) catalysts supported in Printex 6L carbon, in order to increase the generation efficiency of H2O2. The results showed that with the catalyst containing 1.0% of Ph-Mn there was an increase in H2O2 production efficiency of 82% in comparison to 80% obtained for unmodified Printex 6L. However, it was observed that the greater the amount of Ph-Mn incorporated into the catalyst, the lower the tendency for the reaction formation of H2O2