Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities
Proton exchange membrane water electrolyzer (PEMWE) technology is regarded as one of the most promising methods for green hydrogen generation. The oxygen evolution reaction (OER) at the anode is the primary bottleneck preventing the industrial-scale application of PEMWEs due to its sluggish kinetics...
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KeAi Communications Co. Ltd.
2025-05-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141724001228 |
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| author | Yu Wang Haijing Yan Honggang Fu |
| author_facet | Yu Wang Haijing Yan Honggang Fu |
| author_sort | Yu Wang |
| collection | DOAJ |
| description | Proton exchange membrane water electrolyzer (PEMWE) technology is regarded as one of the most promising methods for green hydrogen generation. The oxygen evolution reaction (OER) at the anode is the primary bottleneck preventing the industrial-scale application of PEMWEs due to its sluggish kinetics, and it presently relies upon electrocatalysts that use scarce, costly Ru and Ir. In addition, most of the Ru- and Ir-based electrocatalysts developed to date need high noble metal loading and present good activity only at low current density for a short period. In this review, we systematically elaborate upon various effective strategies for modulating Ru- and Ir-based catalysts to achieve large current density, high stability, and high atom economy, including single-atom designs, heteroatom doping, defect/vacancy creation, alloying, and heterojunction engineering. The structure–performance relationships of OER catalysts synthesized using different strategies are elucidated, along with the importance of substrate materials. We conclude by discussing the remaining challenges and future prospects for OER electrocatalysts in acid. |
| format | Article |
| id | doaj-art-a489e8bb621547fcabf64023687f1c0e |
| institution | OA Journals |
| issn | 2667-1417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | KeAi Communications Co. Ltd. |
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| series | eScience |
| spelling | doaj-art-a489e8bb621547fcabf64023687f1c0e2025-08-20T01:51:20ZengKeAi Communications Co. Ltd.eScience2667-14172025-05-015310032310.1016/j.esci.2024.100323Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densitiesYu Wang0Haijing Yan1Honggang Fu2Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, ChinaKey Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China; Corresponding authors.Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China; Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China; Corresponding authors.Proton exchange membrane water electrolyzer (PEMWE) technology is regarded as one of the most promising methods for green hydrogen generation. The oxygen evolution reaction (OER) at the anode is the primary bottleneck preventing the industrial-scale application of PEMWEs due to its sluggish kinetics, and it presently relies upon electrocatalysts that use scarce, costly Ru and Ir. In addition, most of the Ru- and Ir-based electrocatalysts developed to date need high noble metal loading and present good activity only at low current density for a short period. In this review, we systematically elaborate upon various effective strategies for modulating Ru- and Ir-based catalysts to achieve large current density, high stability, and high atom economy, including single-atom designs, heteroatom doping, defect/vacancy creation, alloying, and heterojunction engineering. The structure–performance relationships of OER catalysts synthesized using different strategies are elucidated, along with the importance of substrate materials. We conclude by discussing the remaining challenges and future prospects for OER electrocatalysts in acid.http://www.sciencedirect.com/science/article/pii/S2667141724001228Acidic oxygen evolution reactionRu- and Ir-Based catalystsIndustrial-level current density and stabilityHigh atom economyModulation strategies |
| spellingShingle | Yu Wang Haijing Yan Honggang Fu Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities eScience Acidic oxygen evolution reaction Ru- and Ir-Based catalysts Industrial-level current density and stability High atom economy Modulation strategies |
| title | Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities |
| title_full | Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities |
| title_fullStr | Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities |
| title_full_unstemmed | Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities |
| title_short | Recent advances and modulation tactics in Ru- and Ir-based electrocatalysts for PEMWE anodes at large current densities |
| title_sort | recent advances and modulation tactics in ru and ir based electrocatalysts for pemwe anodes at large current densities |
| topic | Acidic oxygen evolution reaction Ru- and Ir-Based catalysts Industrial-level current density and stability High atom economy Modulation strategies |
| url | http://www.sciencedirect.com/science/article/pii/S2667141724001228 |
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