Manipulating the oxygen reduction reaction pathway on Pt-coordinated motifs.

ABSTRACT: Electrochemical oxygen reduction could proceed via either 4e^--pathway toward maximum chemical-to-electric energy conversion or 2e^--pathway toward onsite H₂O₂ production. Bulk Pt catalysts are known as the best monometallic materials catalyzing O₂-to-H₂O conversion, however, controversies on the reduction product selectivity are noted for atomic dispersed Pt catalysts. Here, we prepare a series of carbon supported Pt single atom catalyst with varied neighboring dopants and Pt site densities to investigate the local coordination environment effect on branching oxygen reduction pathway. Manipulation of 2e^- or 4e^- reduction pathways is demonstrated through modification of the Pt coordination environment fro

SUBMITTER: Zhao J 

PROVIDER: S-EPMC8813992 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature