公开(公告)号：US20240120504A1

公开(公告)日：2024-04-11

申请号：US18476651

申请日：2023-09-28

Applicant: Kansas State University Research Foundation

Inventor： Jun Li ,  Archana Sekar

IPC: H01M4/92 ,  H01M4/88 ,  H01M4/90

CPC classification number: H01M4/926 ,  H01M4/8882 ,  H01M4/9016 ,  H01M4/921

Abstract: Methods of making and using an improved electrochemical catalyst are provided herein. Catalysts as described herein include a carbon-containing support at least partially coated with a transition metal oxide shell. Catalytic nanoparticles, such as platinum nanoparticles, ruthenium nanoparticles, and/or PtRu alloy nanoparticles, are dispersed in and/or on the shell. The catalysts exhibit enhanced long-term stability and electrochemical activity, particularly with respect to the oxidation of methanol. Microwave-assisted synthesis and thermal annealing steps make the process of producing these catalysts both efficient and more easily scalable. The resulting catalysts have a wide range of end uses in renewable energy applications, including various types of fuel cells.