Thursday, April 26, 2007

US Patent 7208439 - AuPt nanoparticles for fuel cells

While bi-metallic AuPt have been used as a reduction agent in fuel cells, this patent from the State University of New York proposes using nanoparticulate AuPt as an alternative to provide both reduced poisoning within the fuel cell by carbon monoxide by-products and the advantage of high catalytic potential. Claim 1 reads:

1. A bifunctional fuel cell catalyst comprising highly monodisperse, core-shell nanoparticles of gold/platinum (AuPt) alloy supported upon an electrically conductive, non-metallic particulate substrate.