ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,738, issued on Oct. 28, was assigned to Johnson Matthey Hydrogen Technologies Ltd. (London).
"Catalyst for a fuel cell" was invented by Alejandro Martinez-Bonastre (Reading, Great Britain), Rachel O'Malley (Reading, Great Britain) and Brian Theobald (Reading, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a process for preparing a catalyst precursor, said process comprising the steps of (i) providing PtaXb alloy particles on a support material and (ii) applying a shell of X to the PtaXb alloy particles to provide a catalyst precursor comprising particles having a PtaXb core and an X shell. The ratio of a ...