Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery

Sluggish oxygen electrochemistry including both oxygen evolution reactions (OER) and oxygen reduction reactions (ORR) greatly restricts the performance of rechargeable metal–air battery. Herein, we couple NiFe sulfide (NiFeS2) with S-doped graphene oxide (S-GO) via a simultaneous sulfurization strat...

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Main Authors: Zhou, Daojin, Jia, Yin, Yang, Hongbin, Xu, Wenwen, Sun, Kai, Zhang, Junming, Wang, Shiyuan, Kuang, Yun, Liu, Bin, Sun, Xiaoming
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/140809
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1408092020-06-02T05:01:51Z Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery Zhou, Daojin Jia, Yin Yang, Hongbin Xu, Wenwen Sun, Kai Zhang, Junming Wang, Shiyuan Kuang, Yun Liu, Bin Sun, Xiaoming School of Chemical and Biomedical Engineering Engineering::Chemical engineering Coupling Sulfides Rechargeable Metal–air Battery Sluggish oxygen electrochemistry including both oxygen evolution reactions (OER) and oxygen reduction reactions (ORR) greatly restricts the performance of rechargeable metal–air battery. Herein, we couple NiFe sulfide (NiFeS2) with S-doped graphene oxide (S-GO) via a simultaneous sulfurization strategy to significantly improve the OER and ORR activities. The NiFeS2/S-GO on glassy carbon yields an OER current density of 10 mA cm−2 at 1.47 V and an ORR half-wave potential at 0.74 V (vs. RHE), giving an overvoltage difference as low as 0.73 V. When assembled in a rechargeable Zn–air battery, the battery with NiFeS2/S-GO air electrode exhibits a steady charging potential (1.98 V) with very little decay in discharging potential (from 1.20 to 1.17 V) for 180 charging–discharging cycles at 10 mA cm−2. Our study provides new insights for the design of efficient bifunctional oxygen electrocatalysts for high-performance energy conversion and storage devices. MOE (Min. of Education, S’pore) 2020-06-02T05:01:50Z 2020-06-02T05:01:50Z 2018 Journal Article Zhou, D., Jia, Y., Yang, H., Xu, W., Sun, K., Zhang, J., . . . Sun, X. (2018). Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery. Journal of Materials Chemistry A, 6(42), 21162-21166. doi:10.1039/C8TA08862D 2050-7488 https://hdl.handle.net/10356/140809 10.1039/C8TA08862D 2-s2.0-85056108826 42 6 21162 21166 en Journal of Materials Chemistry A © 2018 The Royal Society of Chemistry. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Chemical engineering
Coupling Sulfides
Rechargeable Metal–air Battery
spellingShingle Engineering::Chemical engineering
Coupling Sulfides
Rechargeable Metal–air Battery
Zhou, Daojin
Jia, Yin
Yang, Hongbin
Xu, Wenwen
Sun, Kai
Zhang, Junming
Wang, Shiyuan
Kuang, Yun
Liu, Bin
Sun, Xiaoming
Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
description Sluggish oxygen electrochemistry including both oxygen evolution reactions (OER) and oxygen reduction reactions (ORR) greatly restricts the performance of rechargeable metal–air battery. Herein, we couple NiFe sulfide (NiFeS2) with S-doped graphene oxide (S-GO) via a simultaneous sulfurization strategy to significantly improve the OER and ORR activities. The NiFeS2/S-GO on glassy carbon yields an OER current density of 10 mA cm−2 at 1.47 V and an ORR half-wave potential at 0.74 V (vs. RHE), giving an overvoltage difference as low as 0.73 V. When assembled in a rechargeable Zn–air battery, the battery with NiFeS2/S-GO air electrode exhibits a steady charging potential (1.98 V) with very little decay in discharging potential (from 1.20 to 1.17 V) for 180 charging–discharging cycles at 10 mA cm−2. Our study provides new insights for the design of efficient bifunctional oxygen electrocatalysts for high-performance energy conversion and storage devices.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Zhou, Daojin
Jia, Yin
Yang, Hongbin
Xu, Wenwen
Sun, Kai
Zhang, Junming
Wang, Shiyuan
Kuang, Yun
Liu, Bin
Sun, Xiaoming
format Article
author Zhou, Daojin
Jia, Yin
Yang, Hongbin
Xu, Wenwen
Sun, Kai
Zhang, Junming
Wang, Shiyuan
Kuang, Yun
Liu, Bin
Sun, Xiaoming
author_sort Zhou, Daojin
title Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
title_short Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
title_full Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
title_fullStr Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
title_full_unstemmed Boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
title_sort boosting oxygen reaction activity by coupling sulfides for high-performance rechargeable metal – air battery
publishDate 2020
url https://hdl.handle.net/10356/140809
_version_ 1681059366982123520