Hierarchical Co3O4@multiwalled carbon nanotube nanocable filmswith superior cyclability and high lithium storage capacity

Hua Fang; Shichao Zhang; Wenbo Liu; Zhijia Du; Xiaomeng Wu; Yalan Xing

doi:10.1016/j.electacta.2013.07.021

Hierarchical Co₃O₄@multiwalled carbon nanotube nanocable filmswith superior cyclability and high lithium storage capacity

Hua Fang, Shichao Zhang, Wenbo Liu, Zhijia Du, Xiaomeng Wu, Yalan Xing

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

36 Scopus citations

Abstract

Hierarchical Co₃O₄@multiwalled carbon nanotube (MWCNT) nanocable films are deposited on cop-per foils via a facile one-step electrophoretic deposition (EPD) from MWCNT suspension containing Co(NO ₃)₂·6H₂O and the subsequent heat treatment. The obtained films show network morphologies, withmicro-/mesoporous Co₃O₄sheath uniformly coated on the interconnected MWCNT core. By varying themass ratios of Co(NO₃)₂·6H ₂O to MWCNTs in the suspension, a series of nanocable films are obtained withdifferent Co₃O₄sheath thickness, morphology, and mass content. Among them, the Co₃O₄@MWCNT-4nanocable film, with a high surface area of 156 m² g^-1 and optimally hierarchical pore size distribution,proves to be a qualified candidate anode for lithium-ion batteries. The reversible capacity can reach ashigh as 1109 mAh g^-1 at a relatively high current of 0.2 C (1 C = 890 mA g ^-1). At a higher current of 1 C, thereversible capacity can retain as high as 860 mAh g^-1 and shows no obvious decay after 250 cycles.

Original language	English
Pages (from-to)	651-659
Number of pages	9
Journal	Electrochimica Acta
Volume	108
DOIs	https://doi.org/10.1016/j.electacta.2013.07.021
State	Published - 2013
Externally published	Yes

Funding

This work was supported by the National Basic Research Program of China (973 Program) (2013CB934001), National Natural Science Foundation of China ( 51074011 and 51274017 ) and National 863 Program (2007AA03Z231 and 2011AA11A257).

Funders	Funder number
National Natural Science Foundation of China	51274017, 51074011
National High-tech Research and Development Program	2007AA03Z231, 2011AA11A257
National Key Research and Development Program of China	2013CB934001

Keywords

Cobalt oxide
Electrophoretic deposition
Hierarchical
Lithium-ion batteries
Multiwalled carbon nanotube

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.electacta.2013.07.021

Cite this

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title = "Hierarchical Co3O4@multiwalled carbon nanotube nanocable filmswith superior cyclability and high lithium storage capacity",

abstract = "Hierarchical Co3O4@multiwalled carbon nanotube (MWCNT) nanocable films are deposited on cop-per foils via a facile one-step electrophoretic deposition (EPD) from MWCNT suspension containing Co(NO 3)2·6H2O and the subsequent heat treatment. The obtained films show network morphologies, withmicro-/mesoporous Co3O4sheath uniformly coated on the interconnected MWCNT core. By varying themass ratios of Co(NO3)2·6H 2O to MWCNTs in the suspension, a series of nanocable films are obtained withdifferent Co3O4sheath thickness, morphology, and mass content. Among them, the Co3O4@MWCNT-4nanocable film, with a high surface area of 156 m2 g-1 and optimally hierarchical pore size distribution,proves to be a qualified candidate anode for lithium-ion batteries. The reversible capacity can reach ashigh as 1109 mAh g-1 at a relatively high current of 0.2 C (1 C = 890 mA g -1). At a higher current of 1 C, thereversible capacity can retain as high as 860 mAh g-1 and shows no obvious decay after 250 cycles.",

keywords = "Cobalt oxide, Electrophoretic deposition, Hierarchical, Lithium-ion batteries, Multiwalled carbon nanotube",

author = "Hua Fang and Shichao Zhang and Wenbo Liu and Zhijia Du and Xiaomeng Wu and Yalan Xing",

year = "2013",

doi = "10.1016/j.electacta.2013.07.021",

language = "English",

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journal = "Electrochimica Acta",

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T1 - Hierarchical Co3O4@multiwalled carbon nanotube nanocable filmswith superior cyclability and high lithium storage capacity

AU - Fang, Hua

AU - Zhang, Shichao

AU - Liu, Wenbo

AU - Du, Zhijia

AU - Wu, Xiaomeng

AU - Xing, Yalan

PY - 2013

Y1 - 2013

N2 - Hierarchical Co3O4@multiwalled carbon nanotube (MWCNT) nanocable films are deposited on cop-per foils via a facile one-step electrophoretic deposition (EPD) from MWCNT suspension containing Co(NO 3)2·6H2O and the subsequent heat treatment. The obtained films show network morphologies, withmicro-/mesoporous Co3O4sheath uniformly coated on the interconnected MWCNT core. By varying themass ratios of Co(NO3)2·6H 2O to MWCNTs in the suspension, a series of nanocable films are obtained withdifferent Co3O4sheath thickness, morphology, and mass content. Among them, the Co3O4@MWCNT-4nanocable film, with a high surface area of 156 m2 g-1 and optimally hierarchical pore size distribution,proves to be a qualified candidate anode for lithium-ion batteries. The reversible capacity can reach ashigh as 1109 mAh g-1 at a relatively high current of 0.2 C (1 C = 890 mA g -1). At a higher current of 1 C, thereversible capacity can retain as high as 860 mAh g-1 and shows no obvious decay after 250 cycles.

AB - Hierarchical Co3O4@multiwalled carbon nanotube (MWCNT) nanocable films are deposited on cop-per foils via a facile one-step electrophoretic deposition (EPD) from MWCNT suspension containing Co(NO 3)2·6H2O and the subsequent heat treatment. The obtained films show network morphologies, withmicro-/mesoporous Co3O4sheath uniformly coated on the interconnected MWCNT core. By varying themass ratios of Co(NO3)2·6H 2O to MWCNTs in the suspension, a series of nanocable films are obtained withdifferent Co3O4sheath thickness, morphology, and mass content. Among them, the Co3O4@MWCNT-4nanocable film, with a high surface area of 156 m2 g-1 and optimally hierarchical pore size distribution,proves to be a qualified candidate anode for lithium-ion batteries. The reversible capacity can reach ashigh as 1109 mAh g-1 at a relatively high current of 0.2 C (1 C = 890 mA g -1). At a higher current of 1 C, thereversible capacity can retain as high as 860 mAh g-1 and shows no obvious decay after 250 cycles.

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KW - Multiwalled carbon nanotube

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