▎ 摘　　要

Developing low-platinum catalysts is considered a promisingstrategyto facilitate the commercialization of fuel cells. However, the electrochemicalperformance of such materials is often hindered by mass-transfer issues.In this study, platinum nanoparticles supported on iron and nitrogen-dopedholey graphene (Pt/Fe, N-HG) were synthesized by a simple method andused as an oxygen reduction reaction (ORR) catalyst. The unique holeystructure and the co-doping of Fe and N atoms are proved beneficialfor not only the formation of Pt nanoparticles but also enhancingthe electrochemical performance of the catalyst. Density functionaltheory calculations indicate that the co-doping of Fe and N atomsincreases the ability to adsorb Pt, as well as enhances the Pt adsorptionof O-2 and oxygen-containing intermediates in the ORR. Thisstudy presents a novel approach for the controllable synthesis ofmultidoped holey graphene-based electrocatalysts, with optimized surfaceholey structures and electrochemical performances. These findingsoffer significant insights into the development of efficient catalystsfor fuel cell applications.