H₂O₂-scavenging intermetallic Pt₅Ce/C as a highly active and durable oxygen reduction electrocatalyst.

Authors

Ho Young Kim, Eunji Eom, Sangwon Kim, Hae Jung Son, Sang Hoon Joo, Changbum Jo, Jin Young Kim

Published in

RSC advances. Jul 07, 2026. Epub Jul 07, 2026.

Abstract

Here we report an intermetallic Pt₅Ce/C oxygen reduction catalyst with intrinsic antioxidant functionality. Under electrochemical conditions, Pt₅Ce/C forms Pt-skin surfaces. Subsurface Ce atoms electronically tune Pt-skin to promote H₂O₂-scavenging, achieving a two-fold faster reaction rate than antioxidant-coupled catalysts. Pt₅Ce/C thus delivers excellent catalytic activity and durability for oxygen reduction reaction.

PMID:
42416723
Bibliographic data and abstract were imported from PubMed on 08 Jul 2026.

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