A phosphate tolerant Pt-based oxygen reduction catalyst enabled by synergistic modulation of alloying and surface modification

Abstract

Addressing phosphoric acid poisoning of platinum-based catalysts in high-temperature fuel cells still remains a strategic and synthetic problem. Here, we synthesized a Pt₃Co@MoO_x-NC catalyst with a Pt₃Co active core and MoO_x modification on the surface, which simultaneously exhibits high ORR activity and phosphate tolerance.