1D sub-nanotubes with anatase/bronze TiO₂ nanocrystal wall for high-rate and long-life sodium-ion batteries

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dc.contributor.authorChen, B.
dc.contributor.authorMeng, Y.
dc.contributor.authorXie, F.
dc.contributor.authorHe, F.
dc.contributor.authorHe, C.
dc.contributor.authorDavey, K.
dc.contributor.authorZhao, N.
dc.contributor.authorQiao, S.Z.
dc.date.issued2018
dc.description.abstractThe development of 1D nanostructures with enhanced material properties has been an attractive endeavor for applications in energy and environmental fields, but it remains a major research challenge. Herein, this work demonstrates a simple, gel-derived method to synthesize uniform 1D elongated sub-nanotubes with an anatase/bronze TiO2 nanocrystal wall (TiO2 SNTs). The transformation mechanism of TiO2 SNTs is studied by various ex situ characterization techniques. The resulting 1D nanostructures exhibit, synchronously, a high aspect ratio, open tubular interior, and anatase/bronze nanocrystal TiO2 wall. This results in excellent properties of electron/ion transport and reaction kinetics. Consequently, as an anode material for sodium-ion batteries (SIBs), the TiO2 SNTs display an ultrastable long-life cycling stability with a capacity of 107 mAh g-1 at 16 C after 4000 cycles and a high-rate capacity of 94 mAh g-1 at 32 C. This a high-rate and long-life performance is superior to any report on pure TiO2 for SIBs. This work provides new fundamental information for the design and fabrication of inorganic structures for energy and environmental applications.
dc.description.statementofresponsibilityBiao Chen, Yuhuan Meng, Fangxi Xie, Fang He, Chunnian He, Kenneth Davey, Naiqin Zhao, Shi‐Zhang Qiao
dc.identifier.citationAdvanced Materials, 2018; 30(46):1-7
dc.identifier.doi10.1002/adma.201804116
dc.identifier.issn0935-9648
dc.identifier.issn1521-4095
dc.identifier.orcidXie, F. [0000-0002-6133-6558]
dc.identifier.orcidDavey, K. [0000-0002-7623-9320]
dc.identifier.orcidQiao, S.Z. [0000-0002-1220-1761] [0000-0002-4568-8422]
dc.identifier.urihttp://hdl.handle.net/2440/116666
dc.language.isoen
dc.publisherWiley Online Library
dc.relation.granthttp://purl.org/au-research/grants/arc/FL170100154
dc.rights© 2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
dc.source.urihttps://doi.org/10.1002/adma.201804116
dc.subject1D sub-nanotubes
dc.subjectanatase/bronze TiO2
dc.subjectaspect-ratio
dc.subjectopen interior
dc.subjectsodium-ion batteries
dc.title1D sub-nanotubes with anatase/bronze TiO₂ nanocrystal wall for high-rate and long-life sodium-ion batteries
dc.title.alternative1D sub-nanotubes with anatase/bronze TiO(2) nanocrystal wall for high-rate and long-life sodium-ion batteries
dc.typeJournal article
pubs.publication-statusPublished

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