Effects of Reduction Methods on the Performance of Shewanella oneidensis MR-1 Palladium/Carbon Catalyst for Oxygen Reduction Reaction.

ABSTRACT: The influence of the reduction method on the morphology and performance of the catalyst still controversial. In this study, hydrogen, Shewanella oneidensis MR-1 (MR-1), MR-1 and hydrogen coreduction are used to reduce the palladium ions adsorbed by MR-1 to obtain Pd/C_H2, Pd/C_M, and Pd/C_H2+M catalyst, respectively. It is found that the palladium nanoparticles (Pd NPs) in Pd/C_H2+M are the largest, while the Pd NPs in Pd/C_M are the smallest. This is due to the reduction of Pd NPs in Pd/C_H2+M under anaerobic conditions to form smaller Pd NPs that will further aggregate and grow in H₂. In addition, Pd/C_M exhibited the best catalytic performance with a mass a

SUBMITTER: Deng X 

PROVIDER: S-EPMC10734290 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature