Hollow Fe3O4/C spheres as superior lithium storage materials

Qiumei Zhang; Zhicong Shi; Yuanfu Deng; Jun Zheng; Guichang Liu; Guohua Chen

doi:10.1016/j.jpowsour.2011.09.029

Hollow Fe₃O₄/C spheres as superior lithium storage materials

Qiumei Zhang, Zhicong Shi, Yuanfu Deng, Jun Zheng, Guichang Liu, Guohua Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

116 Citations (Scopus)

Abstract

Unique hollow Fe₃O₄/C spheres are prepared by a simple one-pot solvothermal method, with spinel structure and 750 nm in diameter identified by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The hollow Fe ₃O₄/C spheres exhibit excellent cycling and rate performance as anode material for lithium ion batteries, delivering reversible specific capacities of 984 mAh g^-1 even after 70 cycles at 0.2 C, 620 mAh g^-1 at 2 C, and 460 mAh g^-1 at 5 C, respectively. Lithium insertion mechanisms are also proposed in terms of the ex situ XRD analysis of the electrodes after discharged and charged to certain voltages together with cyclic voltammetry (CV) and voltage profile. © 2011 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	305-309
Journal	Journal of Power Sources
Volume	197
DOIs	https://doi.org/10.1016/j.jpowsour.2011.09.029
Publication status	Published - 1 Jan 2012
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Anode material
High capacity
Hollow sphere
Lithium ion battery
Spinel iron oxide

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Cite this

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title = "Hollow Fe3O4/C spheres as superior lithium storage materials",

abstract = "Unique hollow Fe3O4/C spheres are prepared by a simple one-pot solvothermal method, with spinel structure and 750 nm in diameter identified by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The hollow Fe 3O4/C spheres exhibit excellent cycling and rate performance as anode material for lithium ion batteries, delivering reversible specific capacities of 984 mAh g-1 even after 70 cycles at 0.2 C, 620 mAh g-1 at 2 C, and 460 mAh g-1 at 5 C, respectively. Lithium insertion mechanisms are also proposed in terms of the ex situ XRD analysis of the electrodes after discharged and charged to certain voltages together with cyclic voltammetry (CV) and voltage profile. {\textcopyright} 2011 Elsevier B.V. All rights reserved.",

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author = "Qiumei Zhang and Zhicong Shi and Yuanfu Deng and Jun Zheng and Guichang Liu and Guohua Chen",

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T1 - Hollow Fe3O4/C spheres as superior lithium storage materials

AU - Zhang, Qiumei

AU - Shi, Zhicong

AU - Deng, Yuanfu

AU - Zheng, Jun

AU - Liu, Guichang

AU - Chen, Guohua

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2012/1/1

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N2 - Unique hollow Fe3O4/C spheres are prepared by a simple one-pot solvothermal method, with spinel structure and 750 nm in diameter identified by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The hollow Fe 3O4/C spheres exhibit excellent cycling and rate performance as anode material for lithium ion batteries, delivering reversible specific capacities of 984 mAh g-1 even after 70 cycles at 0.2 C, 620 mAh g-1 at 2 C, and 460 mAh g-1 at 5 C, respectively. Lithium insertion mechanisms are also proposed in terms of the ex situ XRD analysis of the electrodes after discharged and charged to certain voltages together with cyclic voltammetry (CV) and voltage profile. © 2011 Elsevier B.V. All rights reserved.

AB - Unique hollow Fe3O4/C spheres are prepared by a simple one-pot solvothermal method, with spinel structure and 750 nm in diameter identified by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The hollow Fe 3O4/C spheres exhibit excellent cycling and rate performance as anode material for lithium ion batteries, delivering reversible specific capacities of 984 mAh g-1 even after 70 cycles at 0.2 C, 620 mAh g-1 at 2 C, and 460 mAh g-1 at 5 C, respectively. Lithium insertion mechanisms are also proposed in terms of the ex situ XRD analysis of the electrodes after discharged and charged to certain voltages together with cyclic voltammetry (CV) and voltage profile. © 2011 Elsevier B.V. All rights reserved.

KW - Anode material

KW - High capacity

KW - Hollow sphere

KW - Lithium ion battery

KW - Spinel iron oxide

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DO - 10.1016/j.jpowsour.2011.09.029

M3 - RGC 21 - Publication in refereed journal

SN - 0378-7753

VL - 197

SP - 305

EP - 309

JO - Journal of Power Sources

JF - Journal of Power Sources

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