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dc.contributor.authorCOLEMAN, JONATHANen
dc.date.accessioned2015-04-17T10:17:09Z
dc.date.available2015-04-17T10:17:09Z
dc.date.issued2014en
dc.date.submitted2014en
dc.identifier.citationVarrla, E. Paton, K.R. Backes, C. Harvey, A. Smith, R.J. McCauley, J. Coleman, J.N., Turbulence-assisted shear exfoliation of graphene using household detergent and a kitchen blender, Nanoscale, 6, 20, 2014, 11810 - 11819en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/73782
dc.descriptionPUBLISHEDen
dc.description.abstractTo facilitate progression from the lab to commercial applications, it will be necessary to develop simple, scalable methods to produce high quality graphene. Here we demonstrate the production of large quantities of defect-free graphene using a kitchen blender and household detergent. We have characterised the scaling of both graphene concentration and production rate with the mixing parameters: mixing time, initial graphite concentration, rotor speed and liquid volume. We find the production rate to be invariant with mixing time and to increase strongly with mixing volume, results which are important for scale-up. Even in this simple system, concentrations of up to 1 mg ml−1 and graphene masses of >500 mg can be achieved after a few hours mixing. The maximum production rate was [similar]0.15 g h−1, much higher than for standard sonication-based exfoliation methods. We demonstrate that graphene production occurs because the mean turbulent shear rate in the blender exceeds the critical shear rate for exfoliation.en
dc.description.sponsorshipWe acknowledge Science Foundation Ireland (11/PI/1087), the European Research Council (SEMANTICS and POC grant UP2DM), the Graphene Flagship Project (n 604391) and Thomas Swan & Co. Ltd. for Financial support. We acknowledge the Dublin Institute of Technology FOCAS centre for help with some of the Raman measurements.en
dc.format.extent11810en
dc.format.extent11819en
dc.relation.ispartofseriesNanoscaleen
dc.relation.ispartofseries6en
dc.relation.ispartofseries20en
dc.rightsYen
dc.subjectlab to commercial applicationsen
dc.subject.lcshlab to commercial applicationsen
dc.titleTurbulence-assisted shear exfoliation of graphene using household detergent and a kitchen blenderen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/colemajen
dc.identifier.rssinternalid102260en
dc.identifier.doihttp://dx.doi.org/10.1039/c4nr03560gen
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumber11/PI/1087.en
dc.identifier.rssurihttp://www.scopus.com/inward/record.url?eid=2-s2.0-84907481841&partnerID=40&md5=86f124b503df3811bfcec1d013b9f9f3en


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