Synthesis of porous MoV<inf>2</inf>O<inf>8</inf> nanosheets as anode material for superior lithium storage

Zheng, H; Zhang, Q; Gao, H; Sun, W; Zhao, H; Feng, C; Mao, J; Guo, Z

Synthesis of porous MoV<inf>2</inf>O<inf>8</inf> nanosheets as anode material for superior lithium storage

Zheng, H Zhang, Q Gao, H

Sun, W Zhao, H Feng, C Mao, J Guo, Z

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Publisher:: ELSEVIER
Publication Type:: Journal Article
Citation:: Energy Storage Materials, 2019, 22, pp. 128-137
Issue Date:: 2019-11-01

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Field	Value	Language
dc.contributor.author	Zheng, H
dc.contributor.author	Zhang, Q
dc.contributor.author	Gao, H https://orcid.org/0000-0002-4431-631X
dc.contributor.author	Sun, W
dc.contributor.author	Zhao, H
dc.contributor.author	Feng, C
dc.contributor.author	Mao, J
dc.contributor.author	Guo, Z
dc.date.accessioned	2022-09-11T23:01:47Z
dc.date.available	2022-09-11T23:01:47Z
dc.date.issued	2019-11-01
dc.identifier.citation	Energy Storage Materials, 2019, 22, pp. 128-137
dc.identifier.issn	2405-8297
dc.identifier.issn	2405-8297
dc.identifier.uri	http://hdl.handle.net/10453/161716
dc.description.abstract	Vanadium-based mixed oxides are promising for high-energy-density lithium-ion batteries (LIBs) due to their abundant oxidation states, complex chemical compositions and synergistic effects, but the large volume change upon lithiation/delithiation limits the electrochemical properties. Two-dimensional nanostructures have great potential in the development of electrode materials by promoting the ion transport and alleviating the volume change. Herein, porous MoV2O8 nanosheets are synthesized via a solvothermal process followed by thermal treatment without using any surfactants. Benefiting from the nanosheet structure with large surface area and abundant pores, the MoV2O8 electrode exhibits impressive lithium storage properties with superior rate performance and prolonged cyclability. Superior reversible capacities of 1396 and 570 mA h g–1 can be maintained after 120 cycles at 200 mA g–1 and after 1000 cycles at 10 A g–1, respectively. Furthermore, the lithium storage mechanism of the MoV2O8 nanosheets was investigated by in-situ X-ray diffraction, ex-situ X-ray diffraction and X-ray photoelectron spectroscopy measurements, which confirms the synergistic effects of Mo and V upon lithiation/delithiation. In addition, a full cell consisting of the MoV2O8 nanosheets and commercial LiFePO4 exhibited good electrochemical performance, demonstrating the great potential of the MoV2O8 nanosheets as an anode material for LIBs.
dc.language	English
dc.publisher	ELSEVIER
dc.relation.ispartof	Energy Storage Materials
dc.relation.isbasedon	10.1016/j.ensm.2019.01.005
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0904 Chemical Engineering, 0906 Electrical and Electronic Engineering
dc.title	Synthesis of porous MoV<inf>2</inf>O<inf>8</inf> nanosheets as anode material for superior lithium storage
dc.type	Journal Article
utslib.citation.volume	22
utslib.for	0904 Chemical Engineering
utslib.for	0906 Electrical and Electronic Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access	*
dc.date.updated	2022-09-11T23:01:41Z
pubs.publication-status	Published
pubs.volume	22

Abstract:

Vanadium-based mixed oxides are promising for high-energy-density lithium-ion batteries (LIBs) due to their abundant oxidation states, complex chemical compositions and synergistic effects, but the large volume change upon lithiation/delithiation limits the electrochemical properties. Two-dimensional nanostructures have great potential in the development of electrode materials by promoting the ion transport and alleviating the volume change. Herein, porous MoV2O8 nanosheets are synthesized via a solvothermal process followed by thermal treatment without using any surfactants. Benefiting from the nanosheet structure with large surface area and abundant pores, the MoV2O8 electrode exhibits impressive lithium storage properties with superior rate performance and prolonged cyclability. Superior reversible capacities of 1396 and 570 mA h g–1 can be maintained after 120 cycles at 200 mA g–1 and after 1000 cycles at 10 A g–1, respectively. Furthermore, the lithium storage mechanism of the MoV2O8 nanosheets was investigated by in-situ X-ray diffraction, ex-situ X-ray diffraction and X-ray photoelectron spectroscopy measurements, which confirms the synergistic effects of Mo and V upon lithiation/delithiation. In addition, a full cell consisting of the MoV2O8 nanosheets and commercial LiFePO4 exhibited good electrochemical performance, demonstrating the great potential of the MoV2O8 nanosheets as an anode material for LIBs.

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http://hdl.handle.net/10453/161716