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A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts

Aqueous rechargeable zinc (Zn)–air batteries have recently attracted extensive research interest due to their low cost, environmental benignity, safety, and high energy density. However, the sluggish kinetics of oxygen (O(2)) evolution reaction (OER) and the oxygen reduction reaction (ORR) of cathod...

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Detalles Bibliográficos
Autores principales: Wang, Min, Huang, Xiaoxiao, Yu, Zhiqian, Zhang, Pei, Zhai, Chunyang, Song, Hucheng, Xu, Jun, Chen, Kunji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9698408/
https://www.ncbi.nlm.nih.gov/pubmed/36432355
http://dx.doi.org/10.3390/nano12224069
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author Wang, Min
Huang, Xiaoxiao
Yu, Zhiqian
Zhang, Pei
Zhai, Chunyang
Song, Hucheng
Xu, Jun
Chen, Kunji
author_facet Wang, Min
Huang, Xiaoxiao
Yu, Zhiqian
Zhang, Pei
Zhai, Chunyang
Song, Hucheng
Xu, Jun
Chen, Kunji
author_sort Wang, Min
collection PubMed
description Aqueous rechargeable zinc (Zn)–air batteries have recently attracted extensive research interest due to their low cost, environmental benignity, safety, and high energy density. However, the sluggish kinetics of oxygen (O(2)) evolution reaction (OER) and the oxygen reduction reaction (ORR) of cathode catalysts in the batteries result in the high over-potential that impedes the practical application of Zn–air batteries. Here, we report a stable rechargeable aqueous Zn–air battery by use of a heterogeneous two-dimensional molybdenum sulfide (2D MoS(2)) cathode catalyst that consists of a heterogeneous interface and defects-embedded active edge sites. Compared to commercial Pt/C-RuO(2), the low cost MoS(2) cathode catalyst shows decent oxygen evolution and acceptable oxygen reduction catalytic activity. The assembled aqueous Zn–air battery using hybrid MoS(2) catalysts demonstrates a specific capacity of 330 mAh g(−1) and a durability of 500 cycles (~180 h) at 0.5 mA cm(−2). In particular, the hybrid MoS(2) catalysts outperform commercial Pt/C in the practically meaningful high-current region (>5 mA cm(−2)). This work paves the way for research on improving the performance of aqueous Zn–air batteries by constructing their own heterogeneous surfaces or interfaces instead of constructing bifunctional catalysts by compounding other materials.
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spelling pubmed-96984082022-11-26 A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts Wang, Min Huang, Xiaoxiao Yu, Zhiqian Zhang, Pei Zhai, Chunyang Song, Hucheng Xu, Jun Chen, Kunji Nanomaterials (Basel) Article Aqueous rechargeable zinc (Zn)–air batteries have recently attracted extensive research interest due to their low cost, environmental benignity, safety, and high energy density. However, the sluggish kinetics of oxygen (O(2)) evolution reaction (OER) and the oxygen reduction reaction (ORR) of cathode catalysts in the batteries result in the high over-potential that impedes the practical application of Zn–air batteries. Here, we report a stable rechargeable aqueous Zn–air battery by use of a heterogeneous two-dimensional molybdenum sulfide (2D MoS(2)) cathode catalyst that consists of a heterogeneous interface and defects-embedded active edge sites. Compared to commercial Pt/C-RuO(2), the low cost MoS(2) cathode catalyst shows decent oxygen evolution and acceptable oxygen reduction catalytic activity. The assembled aqueous Zn–air battery using hybrid MoS(2) catalysts demonstrates a specific capacity of 330 mAh g(−1) and a durability of 500 cycles (~180 h) at 0.5 mA cm(−2). In particular, the hybrid MoS(2) catalysts outperform commercial Pt/C in the practically meaningful high-current region (>5 mA cm(−2)). This work paves the way for research on improving the performance of aqueous Zn–air batteries by constructing their own heterogeneous surfaces or interfaces instead of constructing bifunctional catalysts by compounding other materials. MDPI 2022-11-18 /pmc/articles/PMC9698408/ /pubmed/36432355 http://dx.doi.org/10.3390/nano12224069 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Min
Huang, Xiaoxiao
Yu, Zhiqian
Zhang, Pei
Zhai, Chunyang
Song, Hucheng
Xu, Jun
Chen, Kunji
A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts
title A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts
title_full A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts
title_fullStr A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts
title_full_unstemmed A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts
title_short A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS(2) Cathode Catalysts
title_sort stable rechargeable aqueous zn–air battery enabled by heterogeneous mos(2) cathode catalysts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9698408/
https://www.ncbi.nlm.nih.gov/pubmed/36432355
http://dx.doi.org/10.3390/nano12224069
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