Patent ID: 8158548
Filing Date: 2012-04-17
Classification: H01M,Y02E,Y02P

Abstract:
1. A method for making anodic electrocatalysts configured to oxidize fuel and cathodic electrocatalysts configured to reduce oxygen for use in polymer electrolyte membrane fuel cells and direct methanol fuel cells and H 2 electrogenerators, the method comprising the step of synthesizing materials having a controlled metallic composition based on clusters of mono- and plurimetallic carbon nitrides supported on ceramic materials based on oxides, wherein the synthesizing step comprises the steps of: preparing a precursor; applying a suitable thermal treatment to the precursor; and activating the electrocatalysts, generating a solution A, wherein solution A comprises an organic solvent (OS), an organic binder (OB) and at least one compound containing a transition metal coordinated by a halide including a selected one of chlorine, bromine and iodine, solution A including a molecule selected from a group of molecules consisting of HAuCl generating a solution B, wherein solution B comprises water, an organic binder (OB) and at least one complex of a transition element cyanometallate ligands selected from a group of compounds consisting of KAg(CN) mixing solution A and solution B.