氧还原反应
材料科学
催化作用
质子交换膜燃料电池
溶解
降级(电信)
纳米技术
可持续能源
碳纤维
烧结
软件部署
化学工程
反应堆设计
燃料电池
电化学
工艺工程
计算机科学
可再生能源
冶金
电极
有机化学
物理化学
复合材料
工程类
化学
电气工程
核工程
操作系统
复合数
电信
作者
Jiawei Zhang,Yuliang Yuan,Lei Gao,Gangming Zeng,Mengfan Li,Hongwen Huang
标识
DOI:10.1002/adma.202006494
摘要
Abstract 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.
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