Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
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
_version_ 1784708750091747328
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
work_keys_str_mv AT xuxiaomin newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT panyangli newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT zhongyijun newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT shichenliang newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT guandaqin newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT gelei newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT huzhiwei newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT chinyiying newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT linhongji newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT chenchiente newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT wanghao newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT jiangsanping newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation
AT shaozongping newundisputedevidenceandstrategyforenhancedlatticeoxygenparticipationofperovskiteelectrocatalystthroughcationdeficiencymanipulation