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dc.contributor.authorColeman, Jonathan
dc.contributor.authorBoland, John B.
dc.contributor.authorHarvey, Andrew
dc.contributor.authorTian, Ruiyuan
dc.contributor.authorHanlon, Damien
dc.contributor.authorVega-Mayoral, Victor
dc.contributor.authorSzydlowska, Beata
dc.contributor.authorGriffin, Aideen
dc.contributor.authorStimpel-Lindner, Tanja
dc.contributor.authorJaskaniec, Sonia
dc.contributor.authorNicolosi, Valeria
dc.contributor.authorDuesberg, Georg
dc.date.accessioned2020-01-14T17:18:30Z
dc.date.available2020-01-14T17:18:30Z
dc.date.issued2019
dc.date.submitted2019en
dc.identifier.citationBoland, J.B., Harvey, A., Tian, R., Hanlon, D., Vega-Mayoral, V., Szydlowska, B., Griffin, A., Stimpel-Lindner, Jaskaniec, S., Nicolosi, V., Duesberg, G. & Coleman, J.N., Liquid phase exfoliation of MoO2 nanosheets for lithium ion battery applications, 2019, Nanoscale Advances, 1, 4en
dc.identifier.otherY
dc.identifier.urihttps://pubs.rsc.org/en/content/articlelanding/2019/NA/C8NA00241J#!divAbstract
dc.identifier.urihttp://hdl.handle.net/2262/91317
dc.description.abstractMolybdenum dioxide (MoO2) is a layered material which shows promise for a number of applications in the electrochemical energy storage arena. Mostly studied as a bulk layered material, MoO2 has not previously been exfoliated in large quantities. Here we demonstrate the liquid phase exfoliation of MoO2 in the solvent isopropanol, yielding reasonable amounts of good quality nanosheets. However, we found that, when dispersed in isopropanol under ambient conditions, MoO2 nanosheets are gradually oxidized to higher oxides such as MoO3 over a period of days. Conversely, if the nanosheets are processed into dried films immediately after exfoliation, and before oxidation has had a chance to progress, the nanosheets are relatively stable under ambient conditions, remaining unoxidised unless the films are heated. We also found that MoO2 nanosheets can be size selected by controlled centrifugation and show size-dependent optical properties. This allows us to propose spectroscopic metrics which allow concentration- and size-estimation from extinction spectra. Finally, we found that liquid-exfoliated MoO2 nanosheets could be used to produce lithium ion battery anodes with capacities of up to 1140 mA h g−1.en
dc.format.extent1560-1570en
dc.language.isoenen
dc.relation.ispartofseriesNanoscale Advances;
dc.relation.ispartofseries1;
dc.relation.ispartofseries4;
dc.rightsYen
dc.subjectMolybdenum dioxide (MoO2)en
dc.subjectNanosheetsen
dc.subjectLithium ion batteriesen
dc.titleLiquid phase exfoliation of MoO2 nanosheets for lithium ion battery applicationsen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Irelanden
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/colemaj
dc.identifier.rssinternalid208782
dc.identifier.doihttp://dx.doi.org/10.1039/c8na00241j
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumberSFI/12/RC/2278en
dc.contributor.sponsorGrantNumber11/PI/1087en
dc.identifier.orcid_id0000-0001-9659-9721


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