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High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells

Reversible proton ceramic electrochemical cell (R-PCEC) is regarded as the most promising energy conversion device, which can realize efficient mutual conversion of electrical and chemical energy and to solve the problem of large-scale energy storage. However, the development of robust electrodes wi...

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Autores principales: Liu, Zuoqing, Tang, Zhengjie, Song, Yufei, Yang, Guangming, Qian, Wanru, Yang, Meiting, Zhu, Yinlong, Ran, Ran, Wang, Wei, Zhou, Wei, Shao, Zongping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9646682/
https://www.ncbi.nlm.nih.gov/pubmed/36352041
http://dx.doi.org/10.1007/s40820-022-00967-6
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author Liu, Zuoqing
Tang, Zhengjie
Song, Yufei
Yang, Guangming
Qian, Wanru
Yang, Meiting
Zhu, Yinlong
Ran, Ran
Wang, Wei
Zhou, Wei
Shao, Zongping
author_facet Liu, Zuoqing
Tang, Zhengjie
Song, Yufei
Yang, Guangming
Qian, Wanru
Yang, Meiting
Zhu, Yinlong
Ran, Ran
Wang, Wei
Zhou, Wei
Shao, Zongping
author_sort Liu, Zuoqing
collection PubMed
description Reversible proton ceramic electrochemical cell (R-PCEC) is regarded as the most promising energy conversion device, which can realize efficient mutual conversion of electrical and chemical energy and to solve the problem of large-scale energy storage. However, the development of robust electrodes with high catalytic activity is the main bottleneck for the commercialization of R-PCECs. Here, a novel type of high-entropy perovskite oxide consisting of six equimolar metals in the A-site, Pr(1/6)La(1/6)Nd(1/6)Ba(1/6)Sr(1/6)Ca(1/6)CoO(3−δ) (PLNBSCC), is reported as a high-performance bifunctional air electrode for R-PCEC. By harnessing the unique functionalities of multiple elements, high-entropy perovskite oxide can be anticipated to accelerate reaction rates in both fuel cell and electrolysis modes. Especially, an R-PCEC utilizing the PLNBSCC air electrode achieves exceptional electrochemical performances, demonstrating a peak power density of 1.21 W cm(−2) for the fuel cell, while simultaneously obtaining an astonishing current density of − 1.95 A cm(−2) at an electrolysis voltage of 1.3 V and a temperature of 600 °C. The significantly enhanced electrochemical performance and durability of the PLNBSCC air electrode is attributed mainly to the high electrons/ions conductivity, fast hydration reactivity and high configurational entropy. This research explores to a new avenue to develop optimally active and stable air electrodes for R-PCECs. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-022-00967-6.
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spelling pubmed-96466822022-11-15 High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells Liu, Zuoqing Tang, Zhengjie Song, Yufei Yang, Guangming Qian, Wanru Yang, Meiting Zhu, Yinlong Ran, Ran Wang, Wei Zhou, Wei Shao, Zongping Nanomicro Lett Article Reversible proton ceramic electrochemical cell (R-PCEC) is regarded as the most promising energy conversion device, which can realize efficient mutual conversion of electrical and chemical energy and to solve the problem of large-scale energy storage. However, the development of robust electrodes with high catalytic activity is the main bottleneck for the commercialization of R-PCECs. Here, a novel type of high-entropy perovskite oxide consisting of six equimolar metals in the A-site, Pr(1/6)La(1/6)Nd(1/6)Ba(1/6)Sr(1/6)Ca(1/6)CoO(3−δ) (PLNBSCC), is reported as a high-performance bifunctional air electrode for R-PCEC. By harnessing the unique functionalities of multiple elements, high-entropy perovskite oxide can be anticipated to accelerate reaction rates in both fuel cell and electrolysis modes. Especially, an R-PCEC utilizing the PLNBSCC air electrode achieves exceptional electrochemical performances, demonstrating a peak power density of 1.21 W cm(−2) for the fuel cell, while simultaneously obtaining an astonishing current density of − 1.95 A cm(−2) at an electrolysis voltage of 1.3 V and a temperature of 600 °C. The significantly enhanced electrochemical performance and durability of the PLNBSCC air electrode is attributed mainly to the high electrons/ions conductivity, fast hydration reactivity and high configurational entropy. This research explores to a new avenue to develop optimally active and stable air electrodes for R-PCECs. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-022-00967-6. Springer Nature Singapore 2022-11-09 /pmc/articles/PMC9646682/ /pubmed/36352041 http://dx.doi.org/10.1007/s40820-022-00967-6 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Liu, Zuoqing
Tang, Zhengjie
Song, Yufei
Yang, Guangming
Qian, Wanru
Yang, Meiting
Zhu, Yinlong
Ran, Ran
Wang, Wei
Zhou, Wei
Shao, Zongping
High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
title High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
title_full High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
title_fullStr High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
title_full_unstemmed High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
title_short High-Entropy Perovskite Oxide: A New Opportunity for Developing Highly Active and Durable Air Electrode for Reversible Protonic Ceramic Electrochemical Cells
title_sort high-entropy perovskite oxide: a new opportunity for developing highly active and durable air electrode for reversible protonic ceramic electrochemical cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9646682/
https://www.ncbi.nlm.nih.gov/pubmed/36352041
http://dx.doi.org/10.1007/s40820-022-00967-6
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