One-pot synthesis of ultrafine ZnFe2O4 nanocrystals anchored on graphene for high-performance Li and Li-ion batteries

Jian Xie; Wentao Song; Gaoshao Cao; Tiejun Zhu; Xinbing Zhao; Shichao Zhang

doi:10.1039/c3ra46904b

One-pot synthesis of ultrafine ZnFe₂O₄ nanocrystals anchored on graphene for high-performance Li and Li-ion batteries

Jian Xie^*
, Wentao Song
, Gaoshao Cao
, Tiejun Zhu
, Xinbing Zhao
, Shichao Zhang

^*Corresponding author for this work

School of Materials Science and Engineering

Zhejiang University

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

A ZnFe₂O₄-nanocrystals/graphene-nanosheets (ZnFe ₂O₄/G) nanohybrid has been prepared by a facile in situ hydrothermal route using Zn(NO₃)₂·6H₂O, Fe(NO₃)₃·6H₂O and graphite oxide (GO) as the precursors. Ultrafine ZnFe₂O₄ nanocrystals (below 10 nm) are confined by the few-layer graphene sheets reduced from GO, forming a unique sheet-like hybrid. In this structure, the direct restacking of the hydrophobic graphene sheets is refrained by loading ZnFe₂O ₄ nanocrystals as the spacers and the aggregation of ZnFe ₂O₄ nanocrystals is inhibited by the dispersing and confining effects of the graphene sheets. ZnFe₂O₄/G shows excellent rate capability and high-rate cycling stability for lithium storage. It also shows a high capacity when used as an anode for a ZnFe₂O ₄/G-LiFePO₄/C full cell.

Original language	English
Pages (from-to)	7703-7709
Number of pages	7
Journal	RSC Advances
Volume	4
Issue number	15
DOIs	https://doi.org/10.1039/c3ra46904b
State	Published - 2014

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title = "One-pot synthesis of ultrafine ZnFe2O4 nanocrystals anchored on graphene for high-performance Li and Li-ion batteries",

abstract = "A ZnFe2O4-nanocrystals/graphene-nanosheets (ZnFe 2O4/G) nanohybrid has been prepared by a facile in situ hydrothermal route using Zn(NO3)2·6H2O, Fe(NO3)3·6H2O and graphite oxide (GO) as the precursors. Ultrafine ZnFe2O4 nanocrystals (below 10 nm) are confined by the few-layer graphene sheets reduced from GO, forming a unique sheet-like hybrid. In this structure, the direct restacking of the hydrophobic graphene sheets is refrained by loading ZnFe2O 4 nanocrystals as the spacers and the aggregation of ZnFe 2O4 nanocrystals is inhibited by the dispersing and confining effects of the graphene sheets. ZnFe2O4/G shows excellent rate capability and high-rate cycling stability for lithium storage. It also shows a high capacity when used as an anode for a ZnFe2O 4/G-LiFePO4/C full cell.",

author = "Jian Xie and Wentao Song and Gaoshao Cao and Tiejun Zhu and Xinbing Zhao and Shichao Zhang",

year = "2014",

doi = "10.1039/c3ra46904b",

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pages = "7703--7709",

journal = "RSC Advances",

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TY - JOUR

T1 - One-pot synthesis of ultrafine ZnFe2O4 nanocrystals anchored on graphene for high-performance Li and Li-ion batteries

AU - Xie, Jian

AU - Song, Wentao

AU - Cao, Gaoshao

AU - Zhu, Tiejun

AU - Zhao, Xinbing

AU - Zhang, Shichao

PY - 2014

Y1 - 2014

N2 - A ZnFe2O4-nanocrystals/graphene-nanosheets (ZnFe 2O4/G) nanohybrid has been prepared by a facile in situ hydrothermal route using Zn(NO3)2·6H2O, Fe(NO3)3·6H2O and graphite oxide (GO) as the precursors. Ultrafine ZnFe2O4 nanocrystals (below 10 nm) are confined by the few-layer graphene sheets reduced from GO, forming a unique sheet-like hybrid. In this structure, the direct restacking of the hydrophobic graphene sheets is refrained by loading ZnFe2O 4 nanocrystals as the spacers and the aggregation of ZnFe 2O4 nanocrystals is inhibited by the dispersing and confining effects of the graphene sheets. ZnFe2O4/G shows excellent rate capability and high-rate cycling stability for lithium storage. It also shows a high capacity when used as an anode for a ZnFe2O 4/G-LiFePO4/C full cell.

AB - A ZnFe2O4-nanocrystals/graphene-nanosheets (ZnFe 2O4/G) nanohybrid has been prepared by a facile in situ hydrothermal route using Zn(NO3)2·6H2O, Fe(NO3)3·6H2O and graphite oxide (GO) as the precursors. Ultrafine ZnFe2O4 nanocrystals (below 10 nm) are confined by the few-layer graphene sheets reduced from GO, forming a unique sheet-like hybrid. In this structure, the direct restacking of the hydrophobic graphene sheets is refrained by loading ZnFe2O 4 nanocrystals as the spacers and the aggregation of ZnFe 2O4 nanocrystals is inhibited by the dispersing and confining effects of the graphene sheets. ZnFe2O4/G shows excellent rate capability and high-rate cycling stability for lithium storage. It also shows a high capacity when used as an anode for a ZnFe2O 4/G-LiFePO4/C full cell.

UR - https://www.scopus.com/pages/publications/84892945701

U2 - 10.1039/c3ra46904b

DO - 10.1039/c3ra46904b

M3 - 文章

AN - SCOPUS:84892945701

SN - 2046-2069

VL - 4

SP - 7703

EP - 7709

JO - RSC Advances

JF - RSC Advances

IS - 15

ER -

One-pot synthesis of ultrafine ZnFe₂O₄ nanocrystals anchored on graphene for high-performance Li and Li-ion batteries

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