Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation
The development of oxygen evolution reaction (OER) electrocatalysts remains a major challenge that requires significant advances in both mechanistic understanding and material design. Recent studies show that oxygen from the perovskite oxide lattice could participate in the OER via a lattice oxygen-...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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NATURE PUBLISHING GROUP
2020
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/DP150104365 http://hdl.handle.net/20.500.11937/90780 |
| _version_ | 1848765425801756672 |
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| author | Pan, Yangli Xu, Xiaomin Zhong, Yijun Ge, L. Chen, Y. Veder, Jean-Pierre Guan, D. O’Hayre, R. Li, M. Wang, G. Wang, H. Zhou, W. Shao, Zongping |
| author_facet | Pan, Yangli Xu, Xiaomin Zhong, Yijun Ge, L. Chen, Y. Veder, Jean-Pierre Guan, D. O’Hayre, R. Li, M. Wang, G. Wang, H. Zhou, W. Shao, Zongping |
| author_sort | Pan, Yangli |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The development of oxygen evolution reaction (OER) electrocatalysts remains a major challenge that requires significant advances in both mechanistic understanding and material design. Recent studies show that oxygen from the perovskite oxide lattice could participate in the OER via a lattice oxygen-mediated mechanism, providing possibilities for the development of alternative electrocatalysts that could overcome the scaling relations-induced limitations found in conventional catalysts utilizing the adsorbate evolution mechanism. Here we distinguish the extent to which the participation of lattice oxygen can contribute to the OER through the rational design of a model system of silicon-incorporated strontium cobaltite perovskite electrocatalysts with similar surface transition metal properties yet different oxygen diffusion rates. The as-derived silicon-incorporated perovskite exhibits a 12.8-fold increase in oxygen diffusivity, which matches well with the 10-fold improvement of intrinsic OER activity, suggesting that the observed activity increase is dominantly a result of the enhanced lattice oxygen participation. |
| first_indexed | 2025-11-14T11:35:03Z |
| format | Journal Article |
| id | curtin-20.500.11937-90780 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:35:03Z |
| publishDate | 2020 |
| publisher | NATURE PUBLISHING GROUP |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-907802023-04-20T05:38:59Z Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation Pan, Yangli Xu, Xiaomin Zhong, Yijun Ge, L. Chen, Y. Veder, Jean-Pierre Guan, D. O’Hayre, R. Li, M. Wang, G. Wang, H. Zhou, W. Shao, Zongping Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics ION DIFFUSION-COEFFICIENTS OXIDE CATALYSTS ELECTROCATALYSIS SURFACE WATER REDUCTION CONDUCTIVITY PERFORMANCE STABILITY KINETICS The development of oxygen evolution reaction (OER) electrocatalysts remains a major challenge that requires significant advances in both mechanistic understanding and material design. Recent studies show that oxygen from the perovskite oxide lattice could participate in the OER via a lattice oxygen-mediated mechanism, providing possibilities for the development of alternative electrocatalysts that could overcome the scaling relations-induced limitations found in conventional catalysts utilizing the adsorbate evolution mechanism. Here we distinguish the extent to which the participation of lattice oxygen can contribute to the OER through the rational design of a model system of silicon-incorporated strontium cobaltite perovskite electrocatalysts with similar surface transition metal properties yet different oxygen diffusion rates. The as-derived silicon-incorporated perovskite exhibits a 12.8-fold increase in oxygen diffusivity, which matches well with the 10-fold improvement of intrinsic OER activity, suggesting that the observed activity increase is dominantly a result of the enhanced lattice oxygen participation. 2020 Journal Article http://hdl.handle.net/20.500.11937/90780 10.1038/s41467-020-15873-x English http://purl.org/au-research/grants/arc/DP150104365 http://purl.org/au-research/grants/arc/DP160104835 http://creativecommons.org/licenses/by/4.0/ NATURE PUBLISHING GROUP fulltext |
| spellingShingle | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics ION DIFFUSION-COEFFICIENTS OXIDE CATALYSTS ELECTROCATALYSIS SURFACE WATER REDUCTION CONDUCTIVITY PERFORMANCE STABILITY KINETICS Pan, Yangli Xu, Xiaomin Zhong, Yijun Ge, L. Chen, Y. Veder, Jean-Pierre Guan, D. O’Hayre, R. Li, M. Wang, G. Wang, H. Zhou, W. Shao, Zongping Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| title | Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| title_full | Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| title_fullStr | Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| title_full_unstemmed | Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| title_short | Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| title_sort | direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation |
| topic | Science & Technology Multidisciplinary Sciences Science & Technology - Other Topics ION DIFFUSION-COEFFICIENTS OXIDE CATALYSTS ELECTROCATALYSIS SURFACE WATER REDUCTION CONDUCTIVITY PERFORMANCE STABILITY KINETICS |
| url | http://purl.org/au-research/grants/arc/DP150104365 http://purl.org/au-research/grants/arc/DP150104365 http://hdl.handle.net/20.500.11937/90780 |