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Stabilizing Pt‐Based Electrocatalysts for Oxygen Reduction Reaction: Fundamental Understanding and Design Strategies
Author(s) -
Zhang Jiawei,
Yuan Yuliang,
Gao Lei,
Zeng Gangming,
Li Mengfan,
Huang Hongwen
Publication year - 2021
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202006494
Subject(s) - catalysis , proton exchange membrane fuel cell , materials science , dissolution , oxygen reduction reaction , degradation (telecommunications) , sustainable energy , nanotechnology , sintering , carbon fibers , software deployment , reactor design , process engineering , chemical engineering , biochemical engineering , computer science , renewable energy , engineering , metallurgy , chemistry , electrochemistry , organic chemistry , electrode , telecommunications , electrical engineering , composite material , composite number , nuclear engineering , operating system
Proton exchange membrane fuel cells (PEMFCs) with high efficiency and nonpollution characteristics have attracted massive attention from both academic and industrial communities due to their irreplaceable roles in building the future sustainable energy system. However, the stability issue of Pt‐based catalysts for oxygen reduction reaction (ORR) has become a central constraint to the widespread deployment of the devices relative to the catalytic activity. This review aims to provide comprehensive insights into how to improve the stability of Pt‐based catalysts for ORR. First, the basic physical chemistry behind the catalyst degradation, including the fundamental understandings of carbon corrosion, catalyst dissolution, and particle sintering, is highlighted. After a discussion of advanced characterization techniques for the catalyst degradation, the design strategies for improving the stability of Pt‐based catalysts are summarized. Finally, further insights into the remaining challenges and future research directions are also provided.