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3D Graphene Encapsulated Hollow CoSnO3 Nanoboxes as a High Initial Coulombic Efficiency and Lithium Storage Capacity Anode

3D Graphene sheets encapsulated amorphous hollow CoSnO nanoboxes (H‐CoSnO@reduced graphene oxide [RGO]) are successfully fabricated by first preparing 3D graphene oxides encapsulated solid CoSn(OH) nanocubes, followed by an alkaline etching process and subsequent heating treatment in Ar. The hollow... Full description

Journal Title: Small March 2018, Vol.14(10), pp.n/a-n/a
Main Author: Huang, Jian
Other Authors: Ma, Yating , Xie, Qingshui , Zheng, Hongfei , Yang, Jingren , Wang, Laisen , Peng, Dong‐Liang
Format: Electronic Article Electronic Article
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ID: ISSN: 1613-6810 ; E-ISSN: 1613-6829 ; DOI: 10.1002/smll.201703513
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recordid: wj10.1002/smll.201703513
title: 3D Graphene Encapsulated Hollow CoSnO3 Nanoboxes as a High Initial Coulombic Efficiency and Lithium Storage Capacity Anode
format: Article
creator:
  • Huang, Jian
  • Ma, Yating
  • Xie, Qingshui
  • Zheng, Hongfei
  • Yang, Jingren
  • Wang, Laisen
  • Peng, Dong‐Liang
subjects:
  • Amorphous Features
  • Cosno 3
  • Graphene Decorations
  • Hollow Structures
  • Lithium Ion Battery Anodes
ispartof: Small, March 2018, Vol.14(10), pp.n/a-n/a
description: 3D Graphene sheets encapsulated amorphous hollow CoSnO nanoboxes (H‐CoSnO@reduced graphene oxide [RGO]) are successfully fabricated by first preparing 3D graphene oxides encapsulated solid CoSn(OH) nanocubes, followed by an alkaline etching process and subsequent heating treatment in Ar. The hollow CoSnO nanoboxes with average particle size of 230 nm are uniformly and tightly encapsulated by RGO sheets. As an anode material for Li‐ion batteries, H‐CoSnO@RGO displays high initial Coulombic efficiency of 87.1% and large reversible capacity of 1919 mA h g after 500 cycles at the current density of 500 mA g. Moreover, excellent rate capability (1250, 1188, 1141, 1115, 1086, 952, 736, and 528 mA h g at 100, 200, 300, 400, 500, 1000, 2000, and 5000 mA g, respectively) is acquired. The reasons for excellent lithium storage properties of H‐CoSnO@RGO are discussed in detail. results in a 3D interconnected conductive framework. The higher reversed conversion potential of metal Co can act as an anchor to prohibit the coarsening of Sn nanocrystals during delithiation. Combined with a hollow construction and amorphous features, the synthesized CoSnO–graphene hybrid anode delivers high initial Coulombic efficiency, remarkable cycling, and rate properties.
language:
source:
identifier: ISSN: 1613-6810 ; E-ISSN: 1613-6829 ; DOI: 10.1002/smll.201703513
fulltext: fulltext
issn:
  • 1613-6810
  • 16136810
  • 1613-6829
  • 16136829
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title3D Graphene Encapsulated Hollow CoSnO3 Nanoboxes as a High Initial Coulombic Efficiency and Lithium Storage Capacity Anode
creatorHuang, Jian ; Ma, Yating ; Xie, Qingshui ; Zheng, Hongfei ; Yang, Jingren ; Wang, Laisen ; Peng, Dong‐Liang
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subjectAmorphous Features ; Cosno 3 ; Graphene Decorations ; Hollow Structures ; Lithium Ion Battery Anodes
description3D Graphene sheets encapsulated amorphous hollow CoSnO nanoboxes (H‐CoSnO@reduced graphene oxide [RGO]) are successfully fabricated by first preparing 3D graphene oxides encapsulated solid CoSn(OH) nanocubes, followed by an alkaline etching process and subsequent heating treatment in Ar. The hollow CoSnO nanoboxes with average particle size of 230 nm are uniformly and tightly encapsulated by RGO sheets. As an anode material for Li‐ion batteries, H‐CoSnO@RGO displays high initial Coulombic efficiency of 87.1% and large reversible capacity of 1919 mA h g after 500 cycles at the current density of 500 mA g. Moreover, excellent rate capability (1250, 1188, 1141, 1115, 1086, 952, 736, and 528 mA h g at 100, 200, 300, 400, 500, 1000, 2000, and 5000 mA g, respectively) is acquired. The reasons for excellent lithium storage properties of H‐CoSnO@RGO are discussed in detail. results in a 3D interconnected conductive framework. The higher reversed conversion potential of metal Co can act as an anchor to prohibit the coarsening of Sn nanocrystals during delithiation. Combined with a hollow construction and amorphous features, the synthesized CoSnO–graphene hybrid anode delivers high initial Coulombic efficiency, remarkable cycling, and rate properties.
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title3D Graphene Encapsulated Hollow CoSnO3 Nanoboxes as a High Initial Coulombic Efficiency and Lithium Storage Capacity Anode
description3D Graphene sheets encapsulated amorphous hollow CoSnO nanoboxes (H‐CoSnO@reduced graphene oxide [RGO]) are successfully fabricated by first preparing 3D graphene oxides encapsulated solid CoSn(OH) nanocubes, followed by an alkaline etching process and subsequent heating treatment in Ar. The hollow CoSnO nanoboxes with average particle size of 230 nm are uniformly and tightly encapsulated by RGO sheets. As an anode material for Li‐ion batteries, H‐CoSnO@RGO displays high initial Coulombic efficiency of 87.1% and large reversible capacity of 1919 mA h g after 500 cycles at the current density of 500 mA g. Moreover, excellent rate capability (1250, 1188, 1141, 1115, 1086, 952, 736, and 528 mA h g at 100, 200, 300, 400, 500, 1000, 2000, and 5000 mA g, respectively) is acquired. The reasons for excellent lithium storage properties of H‐CoSnO@RGO are discussed in detail. results in a 3D interconnected conductive framework. The higher reversed conversion potential of metal Co can act as an anchor to prohibit the coarsening of Sn nanocrystals during delithiation. Combined with a hollow construction and amorphous features, the synthesized CoSnO–graphene hybrid anode delivers high initial Coulombic efficiency, remarkable cycling, and rate properties.
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abstract3D Graphene sheets encapsulated amorphous hollow CoSnO nanoboxes (H‐CoSnO@reduced graphene oxide [RGO]) are successfully fabricated by first preparing 3D graphene oxides encapsulated solid CoSn(OH) nanocubes, followed by an alkaline etching process and subsequent heating treatment in Ar. The hollow CoSnO nanoboxes with average particle size of 230 nm are uniformly and tightly encapsulated by RGO sheets. As an anode material for Li‐ion batteries, H‐CoSnO@RGO displays high initial Coulombic efficiency of 87.1% and large reversible capacity of 1919 mA h g after 500 cycles at the current density of 500 mA g. Moreover, excellent rate capability (1250, 1188, 1141, 1115, 1086, 952, 736, and 528 mA h g at 100, 200, 300, 400, 500, 1000, 2000, and 5000 mA g, respectively) is acquired. The reasons for excellent lithium storage properties of H‐CoSnO@RGO are discussed in detail. results in a 3D interconnected conductive framework. The higher reversed conversion potential of metal Co can act as an anchor to prohibit the coarsening of Sn nanocrystals during delithiation. Combined with a hollow construction and amorphous features, the synthesized CoSnO–graphene hybrid anode delivers high initial Coulombic efficiency, remarkable cycling, and rate properties.
doi10.1002/smll.201703513
orcidid0000-0003-4155-4766
pages1-12
date2018-03