Stabilizing platinum-based electrocatalysts for oxygen reduction reaction in acid media: A mini review

• Published in: International journal of hydrogen energy Vol. 51; pp. 1 - 15
• Main Authors: Ren, Yangyang, Li, Beibei, Lv, Chenhao, Zang, Zehao, Li, Lanlan, Lu, Zunming, Yang, Xiaojing, Zhang, Xinghua, Yu, Xiaofei
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 02.01.2024
• Subjects: Electrocatalysts; Fuel cells; Oxygen reduction reaction; Platinum; Stability; Stability; Platinum; Electrocatalysts; Oxygen reduction reaction; Fuel cells
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/j.ijhydene.2023.09.259

With the growing demand for fossil energy and the consequent environmental pollution problems, fuel cells (FCs) play a significant role in the affordable, secure and zero emission energy devices. The use of platinum (Pt) electrocatalysts for oxygen reduction reaction (ORR) has made outstanding contribution to the commercial realization of high activity FCs. Yet, the short lifetime of Pt catalyst remains a serious issue in real device evaluation system and lab-scale, demanding for the design of materials with higher stability. Thus, fundamental understanding of the connection between the elaborately designed materials and ORR stability is timely urgent in recent years. Here, the increased stability mechanisms of Pt-based nanocatalysts are summarized, focusing on the representative synthesis strategies of high stability Pt-based catalysts and the role of every design for performance enhancement. At last, several brief perspectives related to the future research of stability issues are provided in terms of catalysts’ design limitations. [Display omitted] •Recent advances of Pt-based electrocatalysts for ORR in acid media are discussed.•The latest design strategies of stable Pt-based catalysts are summarized.•Speculation and discussion on the future researches of ORR catalysts are outlined.