A facile microwave-assisted route to Co(OH)2 and Co 3O4 nanosheet for Li-ion battery

Gen Chen; Engang Fu; Meng Zhou; Yun Xu; Ling Fei; Shuguang Deng; Vimal Chaitanya; Yongqiang Wang; Hongmei Luo

doi:10.1016/j.jallcom.2013.06.042

A facile microwave-assisted route to Co(OH)₂ and Co ₃O₄ nanosheet for Li-ion battery

Gen Chen, Engang Fu, Meng Zhou, Yun Xu, Ling Fei, Shuguang Deng, Vimal Chaitanya, Yongqiang Wang, Hongmei Luo

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

41 Scopus citations

Abstract

A facile microwave-assisted synthetic route has been successfully developed for preparing hexagonal Co(OH) )₂ nanosheets with average width of 2 μm and thickness of 100 nm. Co(OH) )₂ can further convert to porous Co₃O₄ nanosheets via thermal decomposition. Their phases, structures and morphologies were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Both Co(OH) )₂ and Co₃O₄ nanosheets can serve as potential candidates for anodes of Li-ion battery. The electrochemical study revealed that Co(OH) )₂ and Co₃O₄ nanosheets delivered a reversible capacity of 600 and 700 mA h g-1 after 40 cycles, respectively. Cyclic voltammetry (CV) curves also confirmed the relative stability of the as-synthesized electrode materials. This effective microwaveassisted route may be a promising approach for preparing other transition metal hydroxide/oxides for energy applications.

Original language	English (US)
Pages (from-to)	349-354
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	578
DOIs	https://doi.org/10.1016/j.jallcom.2013.06.042
State	Published - 2013
Externally published	Yes

Keywords

Electrochemical
Microwave-assisted
Nanosheet

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2013.06.042

Cite this

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title = "A facile microwave-assisted route to Co(OH)2 and Co 3O4 nanosheet for Li-ion battery",

abstract = "A facile microwave-assisted synthetic route has been successfully developed for preparing hexagonal Co(OH) )2 nanosheets with average width of 2 μm and thickness of 100 nm. Co(OH) )2 can further convert to porous Co3O4 nanosheets via thermal decomposition. Their phases, structures and morphologies were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Both Co(OH) )2 and Co3O4 nanosheets can serve as potential candidates for anodes of Li-ion battery. The electrochemical study revealed that Co(OH) )2 and Co3O4 nanosheets delivered a reversible capacity of 600 and 700 mA h g-1 after 40 cycles, respectively. Cyclic voltammetry (CV) curves also confirmed the relative stability of the as-synthesized electrode materials. This effective microwaveassisted route may be a promising approach for preparing other transition metal hydroxide/oxides for energy applications.",

keywords = "Electrochemical, Microwave-assisted, Nanosheet",

author = "Gen Chen and Engang Fu and Meng Zhou and Yun Xu and Ling Fei and Shuguang Deng and Vimal Chaitanya and Yongqiang Wang and Hongmei Luo",

note = "Funding Information: We acknowledge the funding support from NSF under Grant No. 1131290 and the office of Vice President for Research at NMSU. The atomic force microscope (AFM) was supported by NSF Major Research Instrument (MRI) program under Grant No. 1229558. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2013",

doi = "10.1016/j.jallcom.2013.06.042",

language = "English (US)",

volume = "578",

pages = "349--354",

journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - A facile microwave-assisted route to Co(OH)2 and Co 3O4 nanosheet for Li-ion battery

AU - Chen, Gen

AU - Fu, Engang

AU - Zhou, Meng

AU - Xu, Yun

AU - Fei, Ling

AU - Deng, Shuguang

AU - Chaitanya, Vimal

AU - Wang, Yongqiang

AU - Luo, Hongmei

N1 - Funding Information: We acknowledge the funding support from NSF under Grant No. 1131290 and the office of Vice President for Research at NMSU. The atomic force microscope (AFM) was supported by NSF Major Research Instrument (MRI) program under Grant No. 1229558. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2013

Y1 - 2013

N2 - A facile microwave-assisted synthetic route has been successfully developed for preparing hexagonal Co(OH) )2 nanosheets with average width of 2 μm and thickness of 100 nm. Co(OH) )2 can further convert to porous Co3O4 nanosheets via thermal decomposition. Their phases, structures and morphologies were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Both Co(OH) )2 and Co3O4 nanosheets can serve as potential candidates for anodes of Li-ion battery. The electrochemical study revealed that Co(OH) )2 and Co3O4 nanosheets delivered a reversible capacity of 600 and 700 mA h g-1 after 40 cycles, respectively. Cyclic voltammetry (CV) curves also confirmed the relative stability of the as-synthesized electrode materials. This effective microwaveassisted route may be a promising approach for preparing other transition metal hydroxide/oxides for energy applications.

AB - A facile microwave-assisted synthetic route has been successfully developed for preparing hexagonal Co(OH) )2 nanosheets with average width of 2 μm and thickness of 100 nm. Co(OH) )2 can further convert to porous Co3O4 nanosheets via thermal decomposition. Their phases, structures and morphologies were investigated by X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). Both Co(OH) )2 and Co3O4 nanosheets can serve as potential candidates for anodes of Li-ion battery. The electrochemical study revealed that Co(OH) )2 and Co3O4 nanosheets delivered a reversible capacity of 600 and 700 mA h g-1 after 40 cycles, respectively. Cyclic voltammetry (CV) curves also confirmed the relative stability of the as-synthesized electrode materials. This effective microwaveassisted route may be a promising approach for preparing other transition metal hydroxide/oxides for energy applications.

KW - Electrochemical

KW - Microwave-assisted

KW - Nanosheet

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