Asymmetric design of a Pt/C catalyst layer for enhanced performance in proton exchange membrane fuel cells.

ABSTRACT: The physicochemical properties of catalysts significantly influence the overall performance of proton exchange membrane fuel cells (PEMFCs). However, the complexity arising from numerous interrelated parameters presents significant challenges in establishing comprehensive structure-performance relationships for advanced PEMFC systems. This study systematically evaluates three commercial Pt/C catalysts with distinct morphology and structural characteristics to reveal their specific functional impacts on fuel cell performance. The results indicate the abundant micropores and small-sized Pt nanoparticles, embedded in micropores, can significantly enhance the catalytic performance at the cathode side. Conversely, hydrogen oxidation reaction (HOR), at the anode side, prefers to occur on the sur

SUBMITTER: Li J 

PROVIDER: S-EPMC12648384 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature