GAS DIFFUSION ELECTRODE, DEVICE AND PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE

摘要

The invention relates to a device for producing hydrogen peroxide comprising a two-compartment electrochemical cell which comprises an anode, a cathode and an aqueous electrolyte, said compartments being separated by an ion exchange membrane, said cathode being an electrode with gaseous diffusion, said device being characterized in that said cathode comprises at least one catalyst based on Co, N and C made from at least one precursor comprising cobalt and not containing nitrogen such as cobalt, or a catalyst comprising a derivative of 5,10,15,20 tetrakis (4-methoxyphenyl) 21H, 23H Porphyrin Cobalt II (or CoTMPP), such as its initial content of CoTMPP, in weight of cobalt on carbon, is less than or equal to 0.5%, preferably 0.2%. Method of implementing such a device Gas diffusion electrode comprising such a catalyst.