Sb<inf>2</inf>O<inf>3</inf>/MXene(Ti<inf>3</inf>C<inf>2</inf>T<inf>x</inf>) hybrid anode materials with enhanced performance for sodium-ion batteries

Guo, X; Xie, X; Choi, S; Zhao, Y; Liu, H; Wang, C; Chang, S; Wang, G

Sb<inf>2</inf>O<inf>3</inf>/MXene(Ti<inf>3</inf>C<inf>2</inf>T<inf>x</inf>) hybrid anode materials with enhanced performance for sodium-ion batteries

Guo, X

Xie, X

Choi, S Zhao, Y

Liu, H

Wang, C Chang, S

Wang, G

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Publication Type:: Journal Article
Citation:: Journal of Materials Chemistry A, 2017, 5 (24), pp. 12445 - 12452
Issue Date:: 2017-01-01

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Field	Value	Language
dc.contributor.author	Guo, X https://orcid.org/0000-0001-7771-0463	en_US
dc.contributor.author	Xie, X https://orcid.org/0000-0002-8670-8397	en_US
dc.contributor.author	Choi, S	en_US
dc.contributor.author	Zhao, Y https://orcid.org/0000-0002-8653-8666	en_US
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472	en_US
dc.contributor.author	Wang, C	en_US
dc.contributor.author	Chang, S https://orcid.org/0000-0003-0723-3192	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2017-01-01	en_US
dc.identifier.citation	Journal of Materials Chemistry A, 2017, 5 (24), pp. 12445 - 12452	en_US
dc.identifier.issn	2050-7488	en_US
dc.identifier.uri	http://hdl.handle.net/10453/114741
dc.description.abstract	© 2017 The Royal Society of Chemistry. MXenes, a novel family of two dimensional (2D) materials with excellent electronic conductivity and hydrophilicity, have emerged as a promising material for energy storage. Based on the intercalation mechanism, MXenes have demonstrated an excellent performance for supercapacitors but low capacities for sodium-ion batteries. Herein, we developed a facile solution-phase method to fabricate the Sb2O3/MXene(Ti3C2Tx) hybrid materials for sodium storage with enhanced electrochemical performances. The as-prepared Sb2O3/Ti3C2Tx composite has a hierarchical structure with Sb2O3 nanoparticles (sub-50 nm) uniformly incorporated in the MXene Ti3C2Tx 3D networks. The Sb2O3 nanoparticles serve as a sufficient sodium ion reservoir; meanwhile, the MXene Ti3C2Tx network provides highly efficient pathways for transport of electrons and Na-ions. The volume expansion of Sb2O3 during sodiation/desodiation can be buffered and confined between the 2D Ti3C2Tx sheets. As a result, the Sb2O3/Ti3C2Tx hybrid anodes present good structural stability and superior electrochemical performance in Na-ion batteries, including an excellent rate performance with a capacity of 295 mA h g-1 at 2 A g-1, and an enhanced cycling performance with a capacity of 472 mA h g-1 after 100 cycles at 100 mA g-1. This work is expected to inspire the development of MXene materials for high performance batteries.	en_US
dc.relation.ispartof	Journal of Materials Chemistry A	en_US
dc.relation.isbasedon	10.1039/c7ta02689g	en_US
dc.title	Sb<inf>2</inf>O<inf>3</inf>/MXene(Ti<inf>3</inf>C<inf>2</inf>T<inf>x</inf>) hybrid anode materials with enhanced performance for sodium-ion batteries	en_US
dc.type	Journal Article
utslib.citation.volume	24	en_US
utslib.citation.volume	5	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	0915 Interdisciplinary 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
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access
pubs.issue	24	en_US
pubs.publication-status	Published	en_US
pubs.volume	5	en_US

Abstract:

© 2017 The Royal Society of Chemistry. MXenes, a novel family of two dimensional (2D) materials with excellent electronic conductivity and hydrophilicity, have emerged as a promising material for energy storage. Based on the intercalation mechanism, MXenes have demonstrated an excellent performance for supercapacitors but low capacities for sodium-ion batteries. Herein, we developed a facile solution-phase method to fabricate the Sb2O3/MXene(Ti3C2Tx) hybrid materials for sodium storage with enhanced electrochemical performances. The as-prepared Sb2O3/Ti3C2Tx composite has a hierarchical structure with Sb2O3 nanoparticles (sub-50 nm) uniformly incorporated in the MXene Ti3C2Tx 3D networks. The Sb2O3 nanoparticles serve as a sufficient sodium ion reservoir; meanwhile, the MXene Ti3C2Tx network provides highly efficient pathways for transport of electrons and Na-ions. The volume expansion of Sb2O3 during sodiation/desodiation can be buffered and confined between the 2D Ti3C2Tx sheets. As a result, the Sb2O3/Ti3C2Tx hybrid anodes present good structural stability and superior electrochemical performance in Na-ion batteries, including an excellent rate performance with a capacity of 295 mA h g-1 at 2 A g-1, and an enhanced cycling performance with a capacity of 472 mA h g-1 after 100 cycles at 100 mA g-1. This work is expected to inspire the development of MXene materials for high performance batteries.

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http://hdl.handle.net/10453/114741