Preparation of platinum nanoparticle catalysts by ion implantation for fuel cell applications

Kato, Sho; Yamaki, Tetsuya; Yamamoto, Shunya; Hakoda, Teruyuki; Kawaguchi, Kazuhiro*; Kobayashi, Tomohiro*; Suzuki, Akihiro*; Terai, Takayuki*

Platinum nanoparticle catalysts for fuel cell applications were prepared by ion implantation in a glassy carbon substrate followed by electrochemical etching and thermal treatment. Interestingly, they had a strong interaction with the substrate via platinum-carbon bonds, probably thereby achieving high catalytic activity for the oxygen reduction reaction.