Mesoporous hexagonal Co<inf>3</inf>O<inf>4</inf> for high performance lithium ion batteries

Su, D; Xie, X; Munroe, P; Dou, S; Wang, G

Mesoporous hexagonal Co<inf>3</inf>O<inf>4</inf> for high performance lithium ion batteries

Su, D

Xie, X

Munroe, P Dou, S Wang, G

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Publication Type:: Journal Article
Citation:: Scientific Reports, 2014, 4
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Su, D https://orcid.org/0000-0002-3972-8205	en_US
dc.contributor.author	Xie, X https://orcid.org/0000-0002-8670-8397	en_US
dc.contributor.author	Munroe, P	en_US
dc.contributor.author	Dou, S	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.available	2014-07-23	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Scientific Reports, 2014, 4	en_US
dc.identifier.uri	http://hdl.handle.net/10453/35147
dc.description.abstract	© 2014 Macmillan Publishers Limited. Mesoporous Co3O4 nanoplates were successfully prepared by the conversion of hexagonal β-Co(OH) 2 nanoplates. TEM, HRTEM and N2 sorption analysis confirmed the facet crystal structure and inner mesoporous architecture. When applied as anode materials for lithium storage in lithium ion batteries, mesoporous Co3O4 nanocrystals delivered a high specific capacity. At 10 C current rate, as-prepared mesoporous Co3O4 nanoplates delivered a specific capacity of 1203 mAh/g at first cycle and after 200 cycles it can still maintain a satisfied value (330 mAh/g). From ex-situ TEM, SAED and FESEM observation, it was found that mesoporous Co3O4 nanoplates were reduced to Li2O and Co during the discharge process and re-oxidised without losing the mesoporous structure during charge process. Even after 100 cycles, mesoporous Co3O4 crystals still preserved their pristine hexagonal shape and mesoporous nanostructure.	en_US
dc.relation.ispartof	Scientific Reports	en_US
dc.relation.isbasedon	10.1038/srep06519	en_US
dc.title	Mesoporous hexagonal Co<inf>3</inf>O<inf>4</inf> for high performance lithium ion batteries	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0303 Macromolecular and Materials 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 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	open_access
pubs.publication-status	Published	en_US
pubs.volume	4	en_US

Abstract:

© 2014 Macmillan Publishers Limited. Mesoporous Co3O4 nanoplates were successfully prepared by the conversion of hexagonal β-Co(OH) 2 nanoplates. TEM, HRTEM and N2 sorption analysis confirmed the facet crystal structure and inner mesoporous architecture. When applied as anode materials for lithium storage in lithium ion batteries, mesoporous Co3O4 nanocrystals delivered a high specific capacity. At 10 C current rate, as-prepared mesoporous Co3O4 nanoplates delivered a specific capacity of 1203 mAh/g at first cycle and after 200 cycles it can still maintain a satisfied value (330 mAh/g). From ex-situ TEM, SAED and FESEM observation, it was found that mesoporous Co3O4 nanoplates were reduced to Li2O and Co during the discharge process and re-oxidised without losing the mesoporous structure during charge process. Even after 100 cycles, mesoporous Co3O4 crystals still preserved their pristine hexagonal shape and mesoporous nanostructure.

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http://hdl.handle.net/10453/35147