Flow-reactor synthesis of octahedral Pt-Ni nanoparticles modified with Au and their evaluation as oxygen reduction reaction catalysts.

ABSTRACT: Developing oxygen reduction reaction (ORR) catalysts with both high catalytic activity and durability is essential for the commercialization of polymer electrolyte fuel cells (PEFCs). One promising strategy to simultaneously enhance the catalytic activity and durability of Pt-based catalysts is surface modification with Au, which has led to substantial durability improvements in various catalysts such as bulk electrodes, nanowires, and core-shell structures. In this study, octahedral Pt-Ni nanoparticles (oct-Pt-Ni NPs), which are known to exhibit exceptionally high ORR activity, were synthesized and modified with Au using a continuous flow reactor to investigate the effects of Au modification on catalytic activity and durability. The flow synthesis enabled uniform Au deposition on individu

SUBMITTER: Nagai T 

PROVIDER: S-EPMC12683288 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature