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Stability of Platinum‐Group‐Metal‐Based Electrocatalysts in Proton Exchange Membrane Fuel Cells

Zhu, Enbo ; Wu, Menghao ; Xu, Haozhe ; Peng, Bosi ; Liu, Zeyan ; Huang, Yu ; Li, Yujing

Advanced functional materials, 2022-07, Vol.32 (30), p.n/a [Periódico revisado por pares]

Hoboken: Wiley Subscription Services, Inc

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  • Título:
    Stability of Platinum‐Group‐Metal‐Based Electrocatalysts in Proton Exchange Membrane Fuel Cells
  • Autor: Zhu, Enbo ; Wu, Menghao ; Xu, Haozhe ; Peng, Bosi ; Liu, Zeyan ; Huang, Yu ; Li, Yujing
  • Assuntos: Alternative technology ; Catalysts ; Chemical reduction ; Durability ; Electrocatalysts ; Fuel cells ; Oxygen reduction reactions ; Platinum ; Proton exchange membrane fuel cells ; Protons ; stability ; Structural stability
  • É parte de: Advanced functional materials, 2022-07, Vol.32 (30), p.n/a
  • Descrição: Proton exchange membrane fuel cells (PEMFCs) have attracted significant interest as a promising alternative technology to the combustion engine to power next‐generation vehicles with zero emission. Among the various technological targets, system cost and durability are currently identified as the main obstacles toward large‐scale implementation of PEMFCs. Platinum‐group‐metal‐based (PGM‐based) catalysts are the most efficient catalyst for the rate‐limiting cathodic oxygen reduction reaction in PEMFCs and take the highest share in the cost breakdown. Therefore, the stability of PGM‐based electrocatalysts plays a significant role in the development of PEMFCs. This review will summarize the recent progress made on the understanding of both the fundamental chemical and structural stability of PGM‐based catalysts, and their durability in operational PEMFC devices. It calls for systematic studies on the chemical, structural, and operational durability of the PGM‐based catalyst and the need to coin practical descriptors for catalyst design with both superior activity and durability for cost‐effective and high‐performance PEMFCs. The progress made in understanding the stability of platinum‐group‐metal‐based catalysts at both the fundamental level and in operational devices is reviewed, the characterization techniques recently developed to investigate the degradation pathways of catalysts are summarized, and the need to guide the design of practical catalysts with high stability for low cost and high‐performance proton exchange membrane fuel cells are outlined.
  • Editor: Hoboken: Wiley Subscription Services, Inc
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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