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New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation
Oxygen evolution reaction (OER) is a key half‐reaction in many electrochemical transformations, and efficient electrocatalysts are critical to improve its kinetics which is typically sluggish due to its multielectron‐transfer nature. Perovskite oxides are a popular category of OER catalysts, while t...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9108636/ https://www.ncbi.nlm.nih.gov/pubmed/35306740 http://dx.doi.org/10.1002/advs.202200530 |
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author | Xu, Xiaomin Pan, Yangli Zhong, Yijun Shi, Chenliang Guan, Daqin Ge, Lei Hu, Zhiwei Chin, Yi‐Ying Lin, Hong‐Ji Chen, Chien‐Te Wang, Hao Jiang, San Ping Shao, Zongping |
author_facet | Xu, Xiaomin Pan, Yangli Zhong, Yijun Shi, Chenliang Guan, Daqin Ge, Lei Hu, Zhiwei Chin, Yi‐Ying Lin, Hong‐Ji Chen, Chien‐Te Wang, Hao Jiang, San Ping Shao, Zongping |
author_sort | Xu, Xiaomin |
collection | PubMed |
description | Oxygen evolution reaction (OER) is a key half‐reaction in many electrochemical transformations, and efficient electrocatalysts are critical to improve its kinetics which is typically sluggish due to its multielectron‐transfer nature. Perovskite oxides are a popular category of OER catalysts, while their activity remains insufficient under the conventional adsorbate evolution reaction scheme where scaling relations limit activity enhancement. The lattice oxygen‐mediated mechanism (LOM) has been recently reported to overcome such scaling relations and boost the OER catalysis over several doped perovskite catalysts. However, direct evidence supporting the LOM participation is still very little because the doping strategy applied would introduce additional active sites that may mask the real reaction mechanism. Herein, a dopant‐free, cation deficiency manipulation strategy to tailor the bulk diffusion properties of perovskites without affecting their surface properties is reported, providing a perfect platform for studying the contribution of LOM to OER catalysis. Further optimizing the A‐site deficiency achieves a perovskite candidate with excellent intrinsic OER activity, which also demonstrates outstanding performance in rechargeable Zn–air batteries and water electrolyzers. These findings not only corroborate the key role of LOM in OER electrocatalysis, but also provide an effective way for the rational design of better catalyst materials for clean energy technologies. |
format | Online Article Text |
id | pubmed-9108636 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-91086362022-05-20 New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation Xu, Xiaomin Pan, Yangli Zhong, Yijun Shi, Chenliang Guan, Daqin Ge, Lei Hu, Zhiwei Chin, Yi‐Ying Lin, Hong‐Ji Chen, Chien‐Te Wang, Hao Jiang, San Ping Shao, Zongping Adv Sci (Weinh) Research Articles Oxygen evolution reaction (OER) is a key half‐reaction in many electrochemical transformations, and efficient electrocatalysts are critical to improve its kinetics which is typically sluggish due to its multielectron‐transfer nature. Perovskite oxides are a popular category of OER catalysts, while their activity remains insufficient under the conventional adsorbate evolution reaction scheme where scaling relations limit activity enhancement. The lattice oxygen‐mediated mechanism (LOM) has been recently reported to overcome such scaling relations and boost the OER catalysis over several doped perovskite catalysts. However, direct evidence supporting the LOM participation is still very little because the doping strategy applied would introduce additional active sites that may mask the real reaction mechanism. Herein, a dopant‐free, cation deficiency manipulation strategy to tailor the bulk diffusion properties of perovskites without affecting their surface properties is reported, providing a perfect platform for studying the contribution of LOM to OER catalysis. Further optimizing the A‐site deficiency achieves a perovskite candidate with excellent intrinsic OER activity, which also demonstrates outstanding performance in rechargeable Zn–air batteries and water electrolyzers. These findings not only corroborate the key role of LOM in OER electrocatalysis, but also provide an effective way for the rational design of better catalyst materials for clean energy technologies. John Wiley and Sons Inc. 2022-03-20 /pmc/articles/PMC9108636/ /pubmed/35306740 http://dx.doi.org/10.1002/advs.202200530 Text en © 2022 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles Xu, Xiaomin Pan, Yangli Zhong, Yijun Shi, Chenliang Guan, Daqin Ge, Lei Hu, Zhiwei Chin, Yi‐Ying Lin, Hong‐Ji Chen, Chien‐Te Wang, Hao Jiang, San Ping Shao, Zongping New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation |
title | New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation |
title_full | New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation |
title_fullStr | New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation |
title_full_unstemmed | New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation |
title_short | New Undisputed Evidence and Strategy for Enhanced Lattice‐Oxygen Participation of Perovskite Electrocatalyst through Cation Deficiency Manipulation |
title_sort | new undisputed evidence and strategy for enhanced lattice‐oxygen participation of perovskite electrocatalyst through cation deficiency manipulation |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9108636/ https://www.ncbi.nlm.nih.gov/pubmed/35306740 http://dx.doi.org/10.1002/advs.202200530 |
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