质子交换膜燃料电池
催化作用
氧还原反应
化学
氧气
阴极
燃料电池
无机化学
化学工程
组合化学
有机化学
物理化学
电极
电化学
工程类
作者
Yangdong Zhou,Ning Wang,Lu Xing,Xiting Zhang,Renbin Zhong,Yuqin Peng,Yue Chen,Siyu Ye,Xiaohong Xie,Lei Du
出处
期刊:Chem catalysis
[Elsevier]
日期:2023-02-01
卷期号:3 (2): 100484-100484
被引量:2
标识
DOI:10.1016/j.checat.2022.12.001
摘要
Proton exchange membrane (PEM) fuel cells are high-efficiency, clean energy devices that require highly active and stable catalysts for, particularly, the oxygen reduction reaction (ORR) at the cathode. Platinum-group metals (PGMs) are currently the most used ORR catalysts; the high cost and scarce resources of PGMs, however, preclude their practical application. Significant efforts have thus been made in developing both low-PGM (LP) and PGM-free (PF) ORR catalysts, yet the coupling of LP and PF to form composite LP/PF ORR catalysts has been rarely explored. When LP and PF are coupled, beneficial structural and electronic modifications in catalysts could actually be induced from some complementary aspects, allowing a simultaneous enhancement in both the activity and stability of LP/PF ORR catalysts. Based on the milestones and challenges of LP and PF catalysts and the recent research progress on LP/PF catalysts, the coupling (synergistic) effects of LP/PF catalysts are summarized herein, in terms of enhanced intrinsic activity and stability. The perspectives for the future R&D of ORR catalysts through LP and PF coupling are also provided.
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