Platinum‐Rare Earth Alloy Electrocatalysts for the Oxygen Reduction Reaction: A Brief Overview

• Published in: ChemCatChem Vol. 14; no. 19; pp. e202200334 - n/a
• Main Authors: Campos‐Roldán, Carlos A., Jones, Deborah J., Rozière, Jacques, Cavaliere, Sara
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 10.10.2022; Wiley; John Wiley and Sons Inc
• Subjects: Alloying; Catalysis; Chemical reduction; Chemical Sciences; Electrocatalysis; Electrocatalysts; Fuel Cells; Oxygen Reduction Reaction; Oxygen reduction reactions; Platinum; Platinum alloys; Proton exchange membrane fuel cells; Rare earth alloys; Rare Earth Metals; Review; Reviews; Oxygen Reduction Reaction; Electrocatalysis; Rare Earth Metals; Fuel Cells; Platinum alloys
• ISSN: 1867-3880; 1867-3899; 1867-3899
• DOI: 10.1002/cctc.202200334

The development of highly active and long‐term stable electrocatalysts for the cathode of proton‐exchange membrane fuel cells (PEMFC) is a paramount requirement for high performance and durable PEMFC stacks. In this regard, alloying Pt with rare earth metals (REM) has emerged as a promising approach. This short review summarizes and discusses the most relevant advances on Pt‐REM alloy electrocatalysts, from bulk polycrystalline surfaces to carbon supported nanostructures, for the oxygen reduction reaction (ORR), and their implementation in PEMFCs, and is a starting point to establish the challenges in synthesis and design and properties goals for novel Pt‐REM alloys. Fuel cells: The recent progress on platinum‐rare earth alloys for the oxygen reduction reaction, from bulk polycrystalline surfaces to carbon supported nanostructures, is briefly discussed, identifying and establishing the challenges in synthesis and properties design for advanced electrocatalysts for fuel cells.