A microwave synthesis of mesoporous NiCo<inf>2</inf>O<inf>4</inf> nanosheets as electrode materials for lithium-ion batteries and supercapacitors

Mondal, AK; Su, D; Chen, S; Kretschmer, K; Xie, X; Ahn, HJ; Wang, G

A microwave synthesis of mesoporous NiCo<inf>2</inf>O<inf>4</inf> nanosheets as electrode materials for lithium-ion batteries and supercapacitors

Mondal, AK Su, D

Chen, S Kretschmer, K

Xie, X

Ahn, HJ Wang, G

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Publication Type:: Journal Article
Citation:: ChemPhysChem, 2015, 16 (1), pp. 169 - 175
Issue Date:: 2015-01-02

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Field	Value	Language
dc.contributor.author	Mondal, AK	en_US
dc.contributor.author	Su, D https://orcid.org/0000-0002-3972-8205	en_US
dc.contributor.author	Chen, S	en_US
dc.contributor.author	Kretschmer, K https://orcid.org/0000-0002-9089-6300	en_US
dc.contributor.author	Xie, X https://orcid.org/0000-0002-8670-8397	en_US
dc.contributor.author	Ahn, HJ	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2015-01-02	en_US
dc.identifier.citation	ChemPhysChem, 2015, 16 (1), pp. 169 - 175	en_US
dc.identifier.issn	1439-4235	en_US
dc.identifier.uri	http://hdl.handle.net/10453/32454
dc.description.abstract	© 2015 Wiley-VCH Verlag GmbH & Co. KGaA , Weinheim. A facile microwave method was employed to synthesize NiCo2O4 nanosheets as electrode materials for lithium-ion batteries and supercapacitors. The structure and morphology of the materials were characterized by X-ray diffraction, fieldemission scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller methods. Owing to the porous nanosheet structure, the NiCo2O4 electrodes exhibited a high reversible capacity of 891 mAhg-1 at a current density of 100 mAg-1, good rate capability and stable cycling performance. When used as electrode materials for supercapacitors, NiCo2O4 nanosheets demonstrated a specific capacitance of 400 Fg-1 at a current density of 20 Ag-1 and superior cycling stability over 5000 cycles. The excellent electrochemical performance could be ascribed to the thin porous structure of the nanosheets, which provides a high specific surface area to increase the electrode-electrolyte contact area and facilitate rapid ion transport.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP1093855
dc.relation.ispartof	ChemPhysChem	en_US
dc.relation.isbasedon	10.1002/cphc.201402654	en_US
dc.subject.classification	Chemical Physics	en_US
dc.title	A microwave synthesis of mesoporous NiCo<inf>2</inf>O<inf>4</inf> nanosheets as electrode materials for lithium-ion batteries and supercapacitors	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	16	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics	en_US
utslib.for	0307 Theoretical and Computational Chemistry	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
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
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	16	en_US

Abstract:

© 2015 Wiley-VCH Verlag GmbH & Co. KGaA , Weinheim. A facile microwave method was employed to synthesize NiCo2O4 nanosheets as electrode materials for lithium-ion batteries and supercapacitors. The structure and morphology of the materials were characterized by X-ray diffraction, fieldemission scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller methods. Owing to the porous nanosheet structure, the NiCo2O4 electrodes exhibited a high reversible capacity of 891 mAhg-1 at a current density of 100 mAg-1, good rate capability and stable cycling performance. When used as electrode materials for supercapacitors, NiCo2O4 nanosheets demonstrated a specific capacitance of 400 Fg-1 at a current density of 20 Ag-1 and superior cycling stability over 5000 cycles. The excellent electrochemical performance could be ascribed to the thin porous structure of the nanosheets, which provides a high specific surface area to increase the electrode-electrolyte contact area and facilitate rapid ion transport.

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http://hdl.handle.net/10453/32454