| Platinum-based catalysts are traditional high-efficient catalysts in the cathode oxygen reduction reaction (ORR) for proton exchange membrane fuel cells (PEMFC), and improving fuel cell performance while reducing cost is a research focus. Based on the analysis of more than 50 literatures, this review summarized the performance-enhancing control strategies of platinum-based ORR catalysts, including the regulation of particle size, composition and morphology. The recent progress in Pt-based nanoparticles, single atoms (SAC), alloys, high-entropy alloys (HEA), nanowires and nanosheets was introduced as well. In the end, the research challenges and future developments of Pt-based ORR catalysts were addressed. |
