Dual-carbon phase-protective cobalt sulfide nanoparticles with cable-type and mesoporous nanostructure for enhanced cycling stability in sodium and lithium ion batteries

Han, F; Zhang, C; Sun, B; Tang, W; Yang, J; Li, X

Dual-carbon phase-protective cobalt sulfide nanoparticles with cable-type and mesoporous nanostructure for enhanced cycling stability in sodium and lithium ion batteries

Han, F Zhang, C Sun, B Tang, W Yang, J Li, X

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Carbon, 2017, 118 pp. 731 - 742
Issue Date:: 2017-07-01

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Field	Value	Language
dc.contributor.author	Han, F	en_US
dc.contributor.author	Zhang, C	en_US
dc.contributor.author	Sun, B	en_US
dc.contributor.author	Tang, W	en_US
dc.contributor.author	Yang, J	en_US
dc.contributor.author	Li, X	en_US
dc.date.issued	2017-07-01	en_US
dc.identifier.citation	Carbon, 2017, 118 pp. 731 - 742	en_US
dc.identifier.issn	0008-6223	en_US
dc.identifier.uri	http://hdl.handle.net/10453/123951
dc.description.abstract	© 2017 Elsevier Ltd A type of sandwich-type and mesoporous CoS-based coaxial nanocables with conductive CNT backbone core, well-confined CoS nanoparticle interlayer and conformal carbon coating shell (denoted as CNT@CoS@C) are developed through a bottom-up method and investigated as potential anode materials for sodium/lithium ion storage. The rationally constructed architecture successively achieves the integration of one-dimensional conducting networks, ultrafine active nanoparticles, well-developed mesoporosity and sophisticated surface modification via a layer-by-layer assembly strategy, thus upholding good structural/interfacial robustness and enhanced charge-transfer reaction kinetics. As a result, the CNT@CoS@C coaxial nanocables exhibit a high reversible capacity of 494 mAh g −1 , stable cycling with more than 318 mAh g −1 at 500 mA g −1 over 500 cycles (corresponding to 74% capacity retention with 0.05% decay rate per cycle) and impressive rate capability (278 mAh g −1 at 5000 mA g −1 ) for sodium ion batteries (SIBs) and excellent electrochemical performance for lithium ion batteries (LIBs) (1010 mAh g −1 during 200 cycles with no capacity loss and 467 mAh g −1 at 5000 mA g −1 ). In addition, the electrochemical experimental results and simulated calculations suggest that the CoS-based active species possesses better electrochemical properties in term of reaction reversibility and structural stability than its Co 3 O 4 -based counterpart with similar morphological features.	en_US
dc.publisher	Elsevier	en_US
dc.relation.ispartof	Carbon	en_US
dc.relation.isbasedon	10.1016/j.carbon.2017.03.038	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Dual-carbon phase-protective cobalt sulfide nanoparticles with cable-type and mesoporous nanostructure for enhanced cycling stability in sodium and lithium ion batteries	en_US
dc.type	Journal Article
utslib.citation.volume	118	en_US
utslib.for	0301 Analytical Chemistry	en_US
utslib.for	0203 Classical Physics	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	02 Physical 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 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
pubs.declined	2018-05-01T13:55:00.46+1000
pubs.consider-herdc	false	en_US
pubs.publication-status	Published	en_US
pubs.volume	118	en_US

Abstract:

© 2017 Elsevier Ltd A type of sandwich-type and mesoporous CoS-based coaxial nanocables with conductive CNT backbone core, well-confined CoS nanoparticle interlayer and conformal carbon coating shell (denoted as CNT@CoS@C) are developed through a bottom-up method and investigated as potential anode materials for sodium/lithium ion storage. The rationally constructed architecture successively achieves the integration of one-dimensional conducting networks, ultrafine active nanoparticles, well-developed mesoporosity and sophisticated surface modification via a layer-by-layer assembly strategy, thus upholding good structural/interfacial robustness and enhanced charge-transfer reaction kinetics. As a result, the CNT@CoS@C coaxial nanocables exhibit a high reversible capacity of 494 mAh g −1 , stable cycling with more than 318 mAh g −1 at 500 mA g −1 over 500 cycles (corresponding to 74% capacity retention with 0.05% decay rate per cycle) and impressive rate capability (278 mAh g −1 at 5000 mA g −1 ) for sodium ion batteries (SIBs) and excellent electrochemical performance for lithium ion batteries (LIBs) (1010 mAh g −1 during 200 cycles with no capacity loss and 467 mAh g −1 at 5000 mA g −1 ). In addition, the electrochemical experimental results and simulated calculations suggest that the CoS-based active species possesses better electrochemical properties in term of reaction reversibility and structural stability than its Co 3 O 4 -based counterpart with similar morphological features.

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http://hdl.handle.net/10453/123951