Optimizing the structure and yield of vanadium oxide nanotubes by periodic 2D layer scrolling.

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dc.contributor.authorMcNulty, David
dc.contributor.authorBuckley, D. Noel
dc.contributor.authorO'Dwyer, Colm
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderHigher Education Authorityen
dc.contributor.funderSeventh Framework Programmeen
dc.contributor.funderIrish Research Councilen
dc.date.accessioned2018-02-19T16:34:36Z
dc.date.available2018-02-19T16:34:36Z
dc.date.issued2016-04-19
dc.date.updated2018-02-19T09:02:50Z
dc.description.abstractMetal oxide nanotubes with wide interlayer van der Waals spaces are important materials for a range of applications from energy storage to catalysis, and from energy efficient catalysts and metal–insulator systems to smart window technologies. Controlling the crystalline quality is critical for the material's physical properties on the nanoscale. We report a systematic investigation into the optimization of structural quality and yield of vanadium oxide nanotubes (VONTs) synthesized by hydrothermal treatment. Usually, interdigitation of alkyl-amine chains occurs between V2O5 lamina, a stitching process that allows scrolling of 2D crystalline sheets into nanotubes with consistently high quality. Through detailed microscopy and spectroscopy examination, we demonstrate that two amine molecules per V2O5 unit optimizes the structure, quality and yield of the VONTs, and that uniform coverage of the juxtaposed V2O5 surfaces in the interlayer spacing minimizes non-uniformities and defects. This observation is consistent for a range of primary amine lengths (hexylamine to hexadecylamine). Through statistical investigation of hundreds of VONTs under each condition, we uncover the effect of amine chain length of V2O5 2D sheet thickness, and mechanism for optimum VONT quality. Finally, we summarize non-uniformities during VONT synthesis including, bending, spiraling and twisting of the scrolled crystalline layers.en
dc.description.sponsorshipHigher Education Authority (under the framework of the INSPIRE programme, funded by the Irish Government's Programme for Research in Third Level Institutions, Cycle 4, National Development Plan 2007–2013); Irish Research Council (New Foundations Award)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMcNulty, D., Buckley, D. N. and O'Dwyer, C. (2016) 'Optimizing the structure and yield of vanadium oxide nanotubes by periodic 2D layer scrolling', RSC Advances, 6(47), pp. 40932-40944. doi: 10.1039/C6RA04853Fen
dc.identifier.doi10.1039/C6RA04853F
dc.identifier.endpage40944en
dc.identifier.issn2046-2069
dc.identifier.journaltitleRSC Advancesen
dc.identifier.startpage40932en
dc.identifier.urihttps://hdl.handle.net/10468/5484
dc.identifier.volume6en
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/Charles Parsons Energy Research Awards/06/CP/E007/IE/Charles Parsons Research Initiative & Graduate School/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Technology and Innovation Development Award (TIDA)/13/TIDA/E2761/IE/LiONSKIN - Moldable Li-ion battery outer skin for electronic devices/en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::NMP/314508/EU/STable high-capacity lithium-Air Batteries with Long cycle life for Electric cars/STABLEen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Investigator Programme/14/IA/2581/IE/Diffractive optics and photonic probes for efficient mouldable 3D printed battery skin materials for portable electronic devices/en
dc.relation.urihttp://pubs.rsc.org/en/content/articlelanding/2016/RA/C6RA04853F#!divAbstract
dc.rights© The Royal Society of Chemistry 2016en
dc.subjectChainsen
dc.subjectCrystalline materialsen
dc.subjectD regionen
dc.subjectEnergy efficiencyen
dc.subjectMetal insulator boundariesen
dc.subjectMetalsen
dc.subjectNanotubesen
dc.subjectOxidesen
dc.subjectPositive ionsen
dc.subjectVan der Waals forcesen
dc.subjectVanadiumen
dc.subjectYarnen
dc.titleOptimizing the structure and yield of vanadium oxide nanotubes by periodic 2D layer scrolling.en
dc.typeArticle (peer-reviewed)en
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