Sub-4-nm Pt4FeCoNiCu HEI nanocrystals via borophene-mediated co-anchoring for efficient and durable electrocatalysis
Pt-based intermetallic compounds with atomically ordered arrangements are highly promising catalysts for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells. However, the mutual constraint between high-temperature ordering and small-size stability (especially at high metal loadings), as well as t...