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CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries
The performance of quasi‐solid‐state flexible zinc–air batteries (ZABs) is critically dependent on the advancement of air electrodes with outstanding bifunctional electrocatalysis for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), together with the desired mechanical f...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724571/ https://www.ncbi.nlm.nih.gov/pubmed/31508279 http://dx.doi.org/10.1002/advs.201900628 |
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author | Pan, Zhenghui Chen, Hao Yang, Jie Ma, Yuanyuan Zhang, Qichong Kou, Zongkui Ding, Xiaoyu Pang, Yajun Zhang, Lei Gu, Qilin Yan, Chenglin Wang, John |
author_facet | Pan, Zhenghui Chen, Hao Yang, Jie Ma, Yuanyuan Zhang, Qichong Kou, Zongkui Ding, Xiaoyu Pang, Yajun Zhang, Lei Gu, Qilin Yan, Chenglin Wang, John |
author_sort | Pan, Zhenghui |
collection | PubMed |
description | The performance of quasi‐solid‐state flexible zinc–air batteries (ZABs) is critically dependent on the advancement of air electrodes with outstanding bifunctional electrocatalysis for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), together with the desired mechanical flexibility and robustness. The currently available synthesis processes for high‐efficiency bifunctional bimetallic sulfide electrodes typically require high‐temperature hydrothermal or chemical vapor deposition, which is undesirable in terms of the complexity in experimental procedure and the damage of flexibility in the resultant electrode. Herein, a scalable fabrication process is reported by combining electrospinning with in situ sulfurization at room temperature to successfully obtain CuCo(2)S(4) nanosheets@N‐doped carbon nanofiber (CuCo(2)S(4) NSs@N‐CNFs) films, which show remarkable bifunctional catalytic performance (E(j) (= 10) (OER) – E (1/2) (ORR) = 0.751 V) with excellent mechanical flexibility. Furthermore, the CuCo(2)S(4) NSs@N‐CNFs cathode delivers a high open‐circuit potential of 1.46 V, an outstanding specific capacity of 896 mA h g(−1), when assembled into a quasi‐solid‐state flexible ZAB together with Zn NSs@carbon nanotubes (CNTs) film (electrodeposited Zn nanosheets on CNTs film) as the anode. The ZAB also shows a good flexibility and capacity stability with 93.62% capacity retention (bending 1000 cycles from 0° to 180°), making it an excellent power source for portable and wearable electronic devices. |
format | Online Article Text |
id | pubmed-6724571 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-67245712019-09-10 CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries Pan, Zhenghui Chen, Hao Yang, Jie Ma, Yuanyuan Zhang, Qichong Kou, Zongkui Ding, Xiaoyu Pang, Yajun Zhang, Lei Gu, Qilin Yan, Chenglin Wang, John Adv Sci (Weinh) Full Papers The performance of quasi‐solid‐state flexible zinc–air batteries (ZABs) is critically dependent on the advancement of air electrodes with outstanding bifunctional electrocatalysis for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), together with the desired mechanical flexibility and robustness. The currently available synthesis processes for high‐efficiency bifunctional bimetallic sulfide electrodes typically require high‐temperature hydrothermal or chemical vapor deposition, which is undesirable in terms of the complexity in experimental procedure and the damage of flexibility in the resultant electrode. Herein, a scalable fabrication process is reported by combining electrospinning with in situ sulfurization at room temperature to successfully obtain CuCo(2)S(4) nanosheets@N‐doped carbon nanofiber (CuCo(2)S(4) NSs@N‐CNFs) films, which show remarkable bifunctional catalytic performance (E(j) (= 10) (OER) – E (1/2) (ORR) = 0.751 V) with excellent mechanical flexibility. Furthermore, the CuCo(2)S(4) NSs@N‐CNFs cathode delivers a high open‐circuit potential of 1.46 V, an outstanding specific capacity of 896 mA h g(−1), when assembled into a quasi‐solid‐state flexible ZAB together with Zn NSs@carbon nanotubes (CNTs) film (electrodeposited Zn nanosheets on CNTs film) as the anode. The ZAB also shows a good flexibility and capacity stability with 93.62% capacity retention (bending 1000 cycles from 0° to 180°), making it an excellent power source for portable and wearable electronic devices. John Wiley and Sons Inc. 2019-07-05 /pmc/articles/PMC6724571/ /pubmed/31508279 http://dx.doi.org/10.1002/advs.201900628 Text en © 2019 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Full Papers Pan, Zhenghui Chen, Hao Yang, Jie Ma, Yuanyuan Zhang, Qichong Kou, Zongkui Ding, Xiaoyu Pang, Yajun Zhang, Lei Gu, Qilin Yan, Chenglin Wang, John CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries |
title | CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries |
title_full | CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries |
title_fullStr | CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries |
title_full_unstemmed | CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries |
title_short | CuCo(2)S(4) Nanosheets@N‐Doped Carbon Nanofibers by Sulfurization at Room Temperature as Bifunctional Electrocatalysts in Flexible Quasi‐Solid‐State Zn–Air Batteries |
title_sort | cuco(2)s(4) nanosheets@n‐doped carbon nanofibers by sulfurization at room temperature as bifunctional electrocatalysts in flexible quasi‐solid‐state zn–air batteries |
topic | Full Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724571/ https://www.ncbi.nlm.nih.gov/pubmed/31508279 http://dx.doi.org/10.1002/advs.201900628 |
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