The Influence of Thermal Treatment Temperature on the Structure and Performance of Monocarboxyphenyl Cobalt Porphyrin Loaded on Carbon Carrier as an Electrocatalyst for Oxygen Reduction

Abstract

The monocarboxyphenyl cobalt porphyrin (CoMCPP) was synthesized and incorporated into carbon carrier acetylene black (ACET) for proton exchange membrane fuel cell cathode oxygen reduction. The influence of different thermal treatment temperature on the catalytic performance of the composite catalysts was discussed. The synthetic compound catalyst was analyzed by XRD、IR. The electrochemical catalytic performance of catalyst, which was heat-treated under different temperature, for oxygen reduction was tested by linear sweep voltammetry (LSV). The result shows that the best thermal treatment temperature is 6000C, and its catalytic activity also shows the best, the catalytic activity site changes from CoN4 to C-N-Co.