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Heterostructure-Promoted Oxygen Electrocatalysis Enables Rechargeable Zinc-Air Battery with Neutral Aqueous Electrolyte

Neutral aqueous zinc-air batteries (ZABs) are an emerging type of energy devices with substantially elongated lifetime and improved recyclability compared to conventional alkaline ZABs. However, their development is impeded by the lack of robust bifunctional catalyst at the air-electrode for the oxy... Full description

Journal Title: Journal of the American Chemical Society 19 December 2018, Vol.140(50), pp.17624-17631
Main Author: An, Li
Other Authors: Zhang, Zhiyong , Feng, Jianrui , Lv, Fan , Li, Yuxuan , Wang, Rui , Lu, Min , Gupta, Ram B , Xi, Pinxian , Zhang, Sen
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1520-5126 ; PMID: 30403846 Version:1 ; DOI: 10.1021/jacs.8b09805
Link: http://pubmed.gov/30403846
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recordid: medline30403846
title: Heterostructure-Promoted Oxygen Electrocatalysis Enables Rechargeable Zinc-Air Battery with Neutral Aqueous Electrolyte
format: Article
creator:
  • An, Li
  • Zhang, Zhiyong
  • Feng, Jianrui
  • Lv, Fan
  • Li, Yuxuan
  • Wang, Rui
  • Lu, Min
  • Gupta, Ram B
  • Xi, Pinxian
  • Zhang, Sen
subjects:
  • Sauerstoff
  • Zink
  • Wässriger Elektrolyt
  • Oxid
  • Sulfid
  • Phosphat
  • Elektrokatalyse
  • Sauerstoffreduktionsreaktion
  • Regelungssynthese
  • Elektrode
  • Bifunktioneller Katalysator
  • Nanofolie
  • Bindungsenergie
  • Dichtefunktionaltheorie
  • Leistungsdichte
  • Chemistry
ispartof: Journal of the American Chemical Society, 19 December 2018, Vol.140(50), pp.17624-17631
description: Neutral aqueous zinc-air batteries (ZABs) are an emerging type of energy devices with substantially elongated lifetime and improved recyclability compared to conventional alkaline ZABs. However, their development is impeded by the lack of robust bifunctional catalyst at the air-electrode for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR). Here, we report the controlled synthesis of NiFeO/FeNiS heterostructured nanosheets (HNSs) that are highly efficient in catalyzing OER and ORR, therefore enabling neutral rechargeable ZABs. Associated with the formation of abundant oxide/sulfide interfaces over NiFeO/FeNiS HNSs' surfaces, the catalyst's oxygen binding energy can be effectively tuned to enhance the OER and ORR activities, as revealed by the density functional theory calculations. In 0.2 M phosphate buffer solution, the optimized NiFeO/FeNiS HNSs present an excellent oxygen electrocatalytic activity and stability, with much lower OER and ORR overpotentials than single-component FeNiS or NiFeO and with negligible performance decay in accelerated durability testing. When used as an air-electrode, the NiFeO/FeNiS HNSs can deliver a power density of 44.4 mW cm and a superior cycling stability (only 0.6% decay after 900 cycles at 0.5 mA cm), making the resultant ZAB the most efficient and robust one with a neutral aqueous electrolyte reported to date. This work highlights the essential function of the heterostructure interface in oxygen electrocatalysis, opening a new avenue to advanced neutral metal-air batteries.
language: eng
source:
identifier: E-ISSN: 1520-5126 ; PMID: 30403846 Version:1 ; DOI: 10.1021/jacs.8b09805
fulltext: no_fulltext
issn:
  • 15205126
  • 1520-5126
url: Link


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titleHeterostructure-Promoted Oxygen Electrocatalysis Enables Rechargeable Zinc-Air Battery with Neutral Aqueous Electrolyte
creatorAn, Li ; Zhang, Zhiyong ; Feng, Jianrui ; Lv, Fan ; Li, Yuxuan ; Wang, Rui ; Lu, Min ; Gupta, Ram B ; Xi, Pinxian ; Zhang, Sen
ispartofJournal of the American Chemical Society, 19 December 2018, Vol.140(50), pp.17624-17631
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descriptionNeutral aqueous zinc-air batteries (ZABs) are an emerging type of energy devices with substantially elongated lifetime and improved recyclability compared to conventional alkaline ZABs. However, their development is impeded by the lack of robust bifunctional catalyst at the air-electrode for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR). Here, we report the controlled synthesis of NiFeO/FeNiS heterostructured nanosheets (HNSs) that are highly efficient in catalyzing OER and ORR, therefore enabling neutral rechargeable ZABs. Associated with the formation of abundant oxide/sulfide interfaces over NiFeO/FeNiS HNSs' surfaces, the catalyst's oxygen binding energy can be effectively tuned to enhance the OER and ORR activities, as revealed by the density functional theory calculations. In 0.2 M phosphate buffer solution, the optimized NiFeO/FeNiS HNSs present an excellent oxygen electrocatalytic activity and stability, with much lower OER and ORR overpotentials than single-component FeNiS or NiFeO and with negligible performance decay in accelerated durability testing. When used as an air-electrode, the NiFeO/FeNiS HNSs can deliver a power density of 44.4 mW cm and a superior cycling stability (only 0.6% decay after 900 cycles at 0.5 mA cm), making the resultant ZAB the most efficient and robust one with a neutral aqueous electrolyte reported to date. This work highlights the essential function of the heterostructure interface in oxygen electrocatalysis, opening a new avenue to advanced neutral metal-air batteries.
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subjectSauerstoff ; Zink ; Wässriger Elektrolyt ; Oxid ; Sulfid ; Phosphat ; Elektrokatalyse ; Sauerstoffreduktionsreaktion ; Regelungssynthese ; Elektrode ; Bifunktioneller Katalysator ; Nanofolie ; Bindungsenergie ; Dichtefunktionaltheorie ; Leistungsdichte ; Chemistry;
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titleHeterostructure-Promoted Oxygen Electrocatalysis Enables Rechargeable Zinc-Air Battery with Neutral Aqueous Electrolyte
descriptionNeutral aqueous zinc-air batteries (ZABs) are an emerging type of energy devices with substantially elongated lifetime and improved recyclability compared to conventional alkaline ZABs. However, their development is impeded by the lack of robust bifunctional catalyst at the air-electrode for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR). Here, we report the controlled synthesis of NiFeO/FeNiS heterostructured nanosheets (HNSs) that are highly efficient in catalyzing OER and ORR, therefore enabling neutral rechargeable ZABs. Associated with the formation of abundant oxide/sulfide interfaces over NiFeO/FeNiS HNSs' surfaces, the catalyst's oxygen binding energy can be effectively tuned to enhance the OER and ORR activities, as revealed by the density functional theory calculations. In 0.2 M phosphate buffer solution, the optimized NiFeO/FeNiS HNSs present an excellent oxygen electrocatalytic activity and stability, with much lower OER and ORR overpotentials than single-component FeNiS or NiFeO and with negligible performance decay in accelerated durability testing. When used as an air-electrode, the NiFeO/FeNiS HNSs can deliver a power density of 44.4 mW cm and a superior cycling stability (only 0.6% decay after 900 cycles at 0.5 mA cm), making the resultant ZAB the most efficient and robust one with a neutral aqueous electrolyte reported to date. This work highlights the essential function of the heterostructure interface in oxygen electrocatalysis, opening a new avenue to advanced neutral metal-air batteries.
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abstractNeutral aqueous zinc-air batteries (ZABs) are an emerging type of energy devices with substantially elongated lifetime and improved recyclability compared to conventional alkaline ZABs. However, their development is impeded by the lack of robust bifunctional catalyst at the air-electrode for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR). Here, we report the controlled synthesis of NiFeO/FeNiS heterostructured nanosheets (HNSs) that are highly efficient in catalyzing OER and ORR, therefore enabling neutral rechargeable ZABs. Associated with the formation of abundant oxide/sulfide interfaces over NiFeO/FeNiS HNSs' surfaces, the catalyst's oxygen binding energy can be effectively tuned to enhance the OER and ORR activities, as revealed by the density functional theory calculations. In 0.2 M phosphate buffer solution, the optimized NiFeO/FeNiS HNSs present an excellent oxygen electrocatalytic activity and stability, with much lower OER and ORR overpotentials than single-component FeNiS or NiFeO and with negligible performance decay in accelerated durability testing. When used as an air-electrode, the NiFeO/FeNiS HNSs can deliver a power density of 44.4 mW cm and a superior cycling stability (only 0.6% decay after 900 cycles at 0.5 mA cm), making the resultant ZAB the most efficient and robust one with a neutral aqueous electrolyte reported to date. This work highlights the essential function of the heterostructure interface in oxygen electrocatalysis, opening a new avenue to advanced neutral metal-air batteries.
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