Microwave-assisted synthesis of mesoporous Co<inf>3</inf>o<inf>4</inf> nanoflakes for applications in lithium ion batteries and oxygen evolution reactions

Chen, S; Zhao, Y; Sun, B; Ao, Z; Xie, X; Wei, Y; Wang, G

Microwave-assisted synthesis of mesoporous Co<inf>3</inf>o<inf>4</inf> nanoflakes for applications in lithium ion batteries and oxygen evolution reactions

Chen, S Zhao, Y

Sun, B

Ao, Z

Xie, X

Wei, Y Wang, G

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Publication Type:: Journal Article
Citation:: ACS Applied Materials and Interfaces, 2015, 7 (5), pp. 3306 - 3313
Issue Date:: 2015-01-01

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Field	Value	Language
dc.contributor.author	Chen, S	en_US
dc.contributor.author	Zhao, Y https://orcid.org/0000-0002-8653-8666	en_US
dc.contributor.author	Sun, B https://orcid.org/0000-0002-4365-486X	en_US
dc.contributor.author	Ao, Z https://orcid.org/0000-0003-0333-3727	en_US
dc.contributor.author	Xie, X https://orcid.org/0000-0002-8670-8397	en_US
dc.contributor.author	Wei, Y	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	ACS Applied Materials and Interfaces, 2015, 7 (5), pp. 3306 - 3313	en_US
dc.identifier.issn	1944-8244	en_US
dc.identifier.uri	http://hdl.handle.net/10453/35678
dc.description.abstract	© 2015 American Chemical Society. Mesoporous Co3O4 nanoflakes with an interconnected architecture were successfully synthesized using a microwave-assisted hydrothermal and low-temperature conversion method, which exhibited excellent electrochemical performances as anode materials in lithium ion batteries and as catalysts in the oxygen evolution reaction (OER). Field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) observations showed the unique interconnected and mesoporous structure. When employed as anode materials for lithium ion batteries, mesoporous Co3O4 nanoflakes delivered a high specific capacity of 883 mAh/g at 0.1C current rate and stable cycling performances even at higher current rates. Post-mortem analysis of ex situ FESEM images revealed that the mesoporous and interconnected structure had been well maintained after long-term cycling. The mesoporous Co3O4 nanoflakes also showed both OER active properties and good catalytic stability. This could be attributed to both the stability of unique mesoporous structure and highly reactive facets.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP1093855
dc.relation	http://purl.org/au-research/grants/arc/FT110100800
dc.relation.ispartof	ACS Applied Materials and Interfaces	en_US
dc.relation.isbasedon	10.1021/am508136k	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Microwave-assisted synthesis of mesoporous Co<inf>3</inf>o<inf>4</inf> nanoflakes for applications in lithium ion batteries and oxygen evolution reactions	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	7	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	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 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	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	7	en_US

Abstract:

© 2015 American Chemical Society. Mesoporous Co3O4 nanoflakes with an interconnected architecture were successfully synthesized using a microwave-assisted hydrothermal and low-temperature conversion method, which exhibited excellent electrochemical performances as anode materials in lithium ion batteries and as catalysts in the oxygen evolution reaction (OER). Field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) observations showed the unique interconnected and mesoporous structure. When employed as anode materials for lithium ion batteries, mesoporous Co3O4 nanoflakes delivered a high specific capacity of 883 mAh/g at 0.1C current rate and stable cycling performances even at higher current rates. Post-mortem analysis of ex situ FESEM images revealed that the mesoporous and interconnected structure had been well maintained after long-term cycling. The mesoporous Co3O4 nanoflakes also showed both OER active properties and good catalytic stability. This could be attributed to both the stability of unique mesoporous structure and highly reactive facets.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/35678