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dc.contributor.authorColeman, Jonathan
dc.date.accessioned2020-09-28T16:44:57Z
dc.date.available2020-09-28T16:44:57Z
dc.date.issued2020
dc.date.submitted2020en
dc.identifier.citationKaur, H., Tian, R., Roy, A., McCrystall, M., Horvath, D., Lozano Onrubia, G., Smith, R., Ruether, M., Griffin, A., Backes, C., Nicolosi, V., Coleman, J.N., Production of Quasi-2D Platelets of Non-Layered Iron Pyrite (FeS2) by Liquid-Phase Exfoliation for High Performance Battery Electrodes, ACSNano, September 22, 2020en
dc.identifier.otherY
dc.identifier.urihttp://hdl.handle.net/2262/93605
dc.descriptionPUBLISHEDen
dc.description.abstractOver the last fifteen years, two-dimensional (2D) materials have been studied and exploited for many applications. In many cases, 2D materials are formed by the exfoliation of layered crystals such as transition-metal disulphides. However, it has recently become clear that it is possible to exfoliate non-layered materials so long as they have a non-isotropic bonding arrangement. Here, we report the synthesis of 2D-platelets from the earth-abundant, non-layered metal sulfide, iron pyrite (FeS2), using liquid-phase exfoliation. The resultant 2D platelets exhibit the same crystal structure as bulk pyrite but are surface passivated with a density of 14x1018 groups/m2. They form stable suspensions in common solvents and can be size-selected and liquid processed. Although the platelets have relative low aspect ratios (~5), this is in line with the anisotropic cleavage energy of bulk FeS2. We observe size-dependent changes to optical properties leading to spectroscopic metrics which can be used to estimate the dimensions of platelets. These platelets can be used to produce lithium ion battery anodes with capacities approaching 1000 mAh/g.en
dc.language.isoenen
dc.relation.ispartofseriesACSNano;
dc.rightsYen
dc.subjectIron pyriteen
dc.subjectNon-layered materialen
dc.subjectLiquid-phase exfoliationen
dc.subjectSurface passivationen
dc.subjectLithium ion batteryen
dc.titleProduction of Quasi-2D Platelets of Non-Layered Iron Pyrite (FeS2) by Liquid-Phase Exfoliation for High Performance Battery Electrodesen
dc.typeJournal Articleen
dc.contributor.sponsorScience Foundation Ireland (SFI)en
dc.contributor.sponsorEuropean Union (EU)en
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/colemaj
dc.identifier.rssinternalid220603
dc.identifier.doihttps://doi.org/10.1021/acsnano.0c05292
dc.relation.ecprojectidinfo:eu-repo/grantAgreement/EC/FP7/785219
dc.rights.ecaccessrightsopenAccess
dc.contributor.sponsorGrantNumberSFI/12/RC/2278en
dc.contributor.sponsorGrantNumber785219en
dc.identifier.orcid_id0000-0001-9659-9721


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