High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering
Single-phase perovskite oxides that contain nonprecious metals have long been pursued as candidates for catalyzing the oxygen evolution reaction, but their catalytic activity cannot meet the requirements for practical electrochemical energy conversion technologies. Here a cation deficiency-promoted...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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WILEY-V C H VERLAG GMBH
2021
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| Online Access: | http://purl.org/au-research/grants/arc/DP200103332 http://hdl.handle.net/20.500.11937/91965 |
| _version_ | 1848765607574503424 |
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| author | Xu, Xiaomin Pan, Y. Ge, L. Chen, Y. Mao, X. Guan, D. Li, M. Zhong, Yijun Hu, Z. Peterson, V.K. Saunders, M. Chen, C.T. Zhang, H. Ran, R. Du, A. Wang, H. Jiang, S.P. Zhou, W. Shao, Zongping |
| author_facet | Xu, Xiaomin Pan, Y. Ge, L. Chen, Y. Mao, X. Guan, D. Li, M. Zhong, Yijun Hu, Z. Peterson, V.K. Saunders, M. Chen, C.T. Zhang, H. Ran, R. Du, A. Wang, H. Jiang, S.P. Zhou, W. Shao, Zongping |
| author_sort | Xu, Xiaomin |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Single-phase perovskite oxides that contain nonprecious metals have long been pursued as candidates for catalyzing the oxygen evolution reaction, but their catalytic activity cannot meet the requirements for practical electrochemical energy conversion technologies. Here a cation deficiency-promoted phase separation strategy to design perovskite-based composites with significantly enhanced water oxidation kinetics compared to single-phase counterparts is reported. These composites, self-assembled from perovskite precursors, comprise strongly interacting perovskite and related phases, whose structure, composition, and concentration can be accurately controlled by tailoring the stoichiometry of the precursors. The composite catalyst with optimized phase composition and concentration outperforms known perovskite oxide systems and state-of-the-art catalysts by 1–3 orders of magnitude. It is further demonstrated that the strong interfacial interaction of the composite catalysts plays a key role in promoting oxygen ionic transport to boost the lattice-oxygen participated water oxidation. These results suggest a simple and viable approach to developing high-performance, perovskite-based composite catalysts for electrochemical energy conversion. |
| first_indexed | 2025-11-14T11:37:56Z |
| format | Journal Article |
| id | curtin-20.500.11937-91965 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:56Z |
| publishDate | 2021 |
| publisher | WILEY-V C H VERLAG GMBH |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-919652023-06-08T06:52:40Z High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering Xu, Xiaomin Pan, Y. Ge, L. Chen, Y. Mao, X. Guan, D. Li, M. Zhong, Yijun Hu, Z. Peterson, V.K. Saunders, M. Chen, C.T. Zhang, H. Ran, R. Du, A. Wang, H. Jiang, S.P. Zhou, W. Shao, Zongping Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics cation deficiency controllable interface engineering oxygen evolution reaction perovskite composites phase separation water splitting OXYGEN EVOLUTION REACTION LAYERED PEROVSKITE OXIDE CATALYSTS CO cation deficiency controllable interface engineering oxygen evolution reaction perovskite composites phase separation water splitting Single-phase perovskite oxides that contain nonprecious metals have long been pursued as candidates for catalyzing the oxygen evolution reaction, but their catalytic activity cannot meet the requirements for practical electrochemical energy conversion technologies. Here a cation deficiency-promoted phase separation strategy to design perovskite-based composites with significantly enhanced water oxidation kinetics compared to single-phase counterparts is reported. These composites, self-assembled from perovskite precursors, comprise strongly interacting perovskite and related phases, whose structure, composition, and concentration can be accurately controlled by tailoring the stoichiometry of the precursors. The composite catalyst with optimized phase composition and concentration outperforms known perovskite oxide systems and state-of-the-art catalysts by 1–3 orders of magnitude. It is further demonstrated that the strong interfacial interaction of the composite catalysts plays a key role in promoting oxygen ionic transport to boost the lattice-oxygen participated water oxidation. These results suggest a simple and viable approach to developing high-performance, perovskite-based composite catalysts for electrochemical energy conversion. 2021 Journal Article http://hdl.handle.net/20.500.11937/91965 10.1002/smll.202101573 English http://purl.org/au-research/grants/arc/DP200103332 http://purl.org/au-research/grants/arc/DP200103315 http://purl.org/au-research/grants/arc/LP160101729 http://purl.org/au-research/grants/arc/LE0775553 http://purl.org/au-research/grants/arc/LE0775551 WILEY-V C H VERLAG GMBH restricted |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics cation deficiency controllable interface engineering oxygen evolution reaction perovskite composites phase separation water splitting OXYGEN EVOLUTION REACTION LAYERED PEROVSKITE OXIDE CATALYSTS CO cation deficiency controllable interface engineering oxygen evolution reaction perovskite composites phase separation water splitting Xu, Xiaomin Pan, Y. Ge, L. Chen, Y. Mao, X. Guan, D. Li, M. Zhong, Yijun Hu, Z. Peterson, V.K. Saunders, M. Chen, C.T. Zhang, H. Ran, R. Du, A. Wang, H. Jiang, S.P. Zhou, W. Shao, Zongping High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering |
| title | High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering |
| title_full | High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering |
| title_fullStr | High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering |
| title_full_unstemmed | High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering |
| title_short | High-Performance Perovskite Composite Electrocatalysts Enabled by Controllable Interface Engineering |
| title_sort | high-performance perovskite composite electrocatalysts enabled by controllable interface engineering |
| topic | Science & Technology Physical Sciences Technology Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics cation deficiency controllable interface engineering oxygen evolution reaction perovskite composites phase separation water splitting OXYGEN EVOLUTION REACTION LAYERED PEROVSKITE OXIDE CATALYSTS CO cation deficiency controllable interface engineering oxygen evolution reaction perovskite composites phase separation water splitting |
| url | http://purl.org/au-research/grants/arc/DP200103332 http://purl.org/au-research/grants/arc/DP200103332 http://purl.org/au-research/grants/arc/DP200103332 http://purl.org/au-research/grants/arc/DP200103332 http://purl.org/au-research/grants/arc/DP200103332 http://hdl.handle.net/20.500.11937/91965 |