The Promising Seesaw Relationship Between Activity and Stability of Ru-Based Electrocatalysts for Acid Oxygen Evolution and Proton Exchange Membrane Water Electrolysis

IF 13 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Small Pub Date : 2023-10-03 DOI:10.1002/smll.202304636

Ruo-Yao Fan, Yu-Sheng Zhang, Jing-Yi Lv, Guan-Qun Han, Yong-Ming Chai, Bin Dong

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Abstract

The development of electrocatalysts that are not reliant on iridium for efficient acid-oxygen evolution is a critical step towards the proton exchange membrane water electrolysis (PEMWE) and green hydrogen industry. Ruthenium-based electrocatalysts have garnered widespread attention due to their remarkable catalytic activity and lower commercial price. However, the challenge lies in balancing the seesaw relationship between activity and stability of these electrocatalysts during the acid-oxygen evolution reaction (OER). This review delves into the progress made in Ru-based electrocatalysts with regards to acid OER and PEMWE applications. It highlights the significance of customizing the acidic OER mechanism of Ru-based electrocatalysts through the coordination of adsorption evolution mechanism (AEM) and lattice oxygen oxidation mechanism (LOM) to attain the ideal activity and stability relationship. The promising tradeoffs between the activity and stability of different Ru-based electrocatalysts, including Ru metals and alloys, Ru single-atomic materials, Ru oxides, and derived complexes, and Ru-based heterojunctions, as well as their applicability to PEMWE systems, are discussed in detail. Furthermore, this paper offers insights on in situ control of Ru active sites, dynamic catalytic mechanism, and commercial application of PEMWE. Based on three-way relationship between cost, activity, and stability, the perspectives and development are provided.

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Ru基酸性析氧和质子交换膜水电解电催化剂的活性和稳定性之间有希望的Seesaw关系。

开发不依赖铱进行有效酸性析氧的电催化剂是迈向质子交换膜水电解（PEMWE）和绿色氢工业的关键一步。钌基电催化剂由于其显著的催化活性和较低的商业价格而受到广泛关注。然而，挑战在于在酸性析氧反应（OER）期间平衡这些电催化剂的活性和稳定性之间的拉锯关系。这篇综述深入探讨了钌基电催化剂在酸性OER和PEMWE应用方面的进展。它强调了通过吸附演化机制（AEM）和晶格氧氧化机制（LOM）的协调来定制Ru基电催化剂的酸性OER机制以获得理想的活性和稳定性关系的重要性。详细讨论了不同Ru基电催化剂（包括Ru金属和合金、Ru单原子材料、Ru氧化物和衍生络合物以及Ru基异质结）的活性和稳定性之间有希望的权衡，以及它们对PEMWE系统的适用性。此外，本文还对Ru活性位点的原位控制、动态催化机理以及PEMWE的商业应用提供了见解。基于成本、活动和稳定性之间的三元关系，提供了前景和发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Small 工程技术-材料科学：综合

CiteScore

17.70

自引率

3.80%

发文量

1830

审稿时长

2.1 months

期刊介绍： Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments. With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology. Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.