P/METAL-N-C HYBRID CATALYST

摘要

The invention concerns a P/Metal-N-C hybrid catalyst that comprises at least one nitrogen-doped carbonaceous matrix onto which at least one non-precious transition metal is covalently bonded and that is characterised in that it further comprises at least one partially oxidised precious transition metal P of which the weight percentage is less than or equal to 4.0%, and preferably less than or equal to 2.0%, relative to the mass of said P/Metal-N-C hybrid catalyst. The invention also concerns an electrochemical device that comprises such a device, for example a fuel cell with a polymer electrolyte membrane.