NITROGEN AND PHOSPHOROUS DOPED CARBON SUPPORTED NANOPARTICLE PLATINUM ELECTROCATALYST AND METHOD OF MAKING

摘要

A platinum-carbon electrocatalyst material comprising a carbon support having a minimum BET surface area of 1000 m²/g, a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole, a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate, and a plurality of platinum nanoparticles dispersed on the carbon support having a maximum average particle diameter of 1.5 nm.