The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Mar. 20, 2020
Applicant:
Johnson Matthey Hydrogen Technologies Limited, London, GB;
Inventors:
Alejandro Martinez-Bonastre, Reading, GB;
Rachel O'Malley, Reading, GB;
Brian Theobald, Reading, GB;
Assignee:
Johnson Matthey Hydrogen Technologies Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/92 (2006.01); B01J 35/45 (2024.01); H01M 4/88 (2006.01);
U.S. Cl.
CPC ...
H01M 4/921 (2013.01); B01J 35/45 (2024.01); H01M 4/8807 (2013.01); H01M 4/926 (2013.01);
Abstract
The present invention provides a process for preparing a catalyst precursor, said process comprising the steps of (i) providing PtXalloy particles on a support material and (ii) applying a shell of X to the PtXalloy particles to provide a catalyst precursor comprising particles having a PtXcore and an X shell. The ratio of a to b is in the range of and including 10:1 to 1:2.5 and X is Co, Ni, Y, Gd, Sc or Cu. Also provided is a process for preparing a catalyst material.