Platinum Alloy Catalysts for Oxygen Reduction Reaction: Advances, Challenges and Perspectives,ChemNanoMat

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Platinum Alloy Catalysts for Oxygen Reduction Reaction: Advances, Challenges and Perspectives
ChemNanoMat ( IF 2.6 ) Pub Date : 2019-08-05 , DOI: 10.1002/cnma.201900319
Dezhen Wu ₁ , Xiaochen Shen ₁ , Yanbo Pan ₁ , Libo Yao ₁ , Zhenmeng Peng ₁

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One of the challenges in polymer electrolyte membrane fuel cells (PEMFCs) is developing cost‐effective, active and stable catalyst for oxygen reduction reaction (ORR). Platinum alloy‐based catalyst materials have drawn great attention and been intensively investigated for the excellent activity property, with some of them already exceeding 2020 DOE target for the ORR activity. In the meantime, the electrochemical stability of these Pt alloys remains a challenge to be overcome. This review first highlights important understandings of ORR pathways and mechanisms and then proceeds to summarize recent research progresses on development of Pt alloy catalyst materials. Current obstacles in Pt alloy catalyst research are discussed, with the stability issue being specifically emphasized and a theoretical model being developed for depicting the stability property. This review also provides perspectives of future research directions in this field.

中文翻译：

用于氧还原反应的铂合金催化剂：进展，挑战和前景

聚合物电解质膜燃料电池（PEMFC）的挑战之一是开发具有成本效益，活性和稳定的氧还原反应（ORR）催化剂。以铂合金为基础的催化剂材料因其出色的活性而受到了广泛关注，并进行了深入研究，其中一些已经超过了ORE活性的2020 DOE目标。同时，这些Pt合金的电化学稳定性仍然是要克服的挑战。这篇综述首先强调了对ORR途径和机理的重要理解，然后着重总结了有关Pt合金催化剂材料开发的最新研究进展。讨论了铂合金催化剂研究中的当前障碍，特别强调了稳定性问题，并开发了用于描述稳定性的理论模型。这篇综述还提供了该领域未来研究方向的观点。

更新日期：2019-08-05

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