000087819 001__ 87819 000087819 005__ 20200716101550.0 000087819 0247_ $$2doi$$a10.1039/c9nr04974f 000087819 0248_ $$2sideral$$a114158 000087819 037__ $$aART-2019-114158 000087819 041__ $$aeng 000087819 100__ $$aGraf, Aline Amorim 000087819 245__ $$aSonochemical edge functionalisation of molybdenum disulfide 000087819 260__ $$c2019 000087819 5060_ $$aAccess copy available to the general public$$fUnrestricted 000087819 5203_ $$aLiquid-phase exfoliation (LPE) has been shown to be capable of producing large quantities of high-quality dispersions suitable for processing into subsequent applications. LPE typically requires surfactants for aqueous dispersions or organic solvents with high boiling point. However, they have major drawbacks such as toxicity, aggregation during solvent evaporation or the presence of residues. Here, dispersions of molybdenum disulfide in acetone are prepared and show much higher concentration and stability than predicted by Hansen parameter analysis. Aiming to understand these enhanced properties, the nanosheets were characterised using UV-visible spectroscopy, zeta potential measurements, atomic force microscopy, Raman spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and scanning transmission microscopy combined with spatially-resolved electron energy loss spectroscopy. Also, the performance of the MoS2 nanosheets exfoliated in acetone was compared to that of those exfoliated in isopropanol as a catalyst for the hydrogen evolution reaction. The conclusion from the chemical characterisation was that MoS2 nanosheets exfoliated in acetone have an oxygen edge functionalisation, in the form of molybdenum oxides, changing its interaction with solvents and explaining the observed high-quality and stability of the resulting dispersion in a low boiling point solvent. Exfoliation in acetone could potentially be applied as a pretreatment to modify the solubility of MoS2 by edge functionalisation. 000087819 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E13-17R$$9info:eu-repo/grantAgreement/EC/H2020/785219/EU/Graphene Flagship Core Project 2/GrapheneCore2$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 785219-GrapheneCore2$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2016-79776-P 000087819 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000087819 590__ $$a6.895$$b2019 000087819 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b50 / 314 = 0.159$$c2019$$dQ1$$eT1 000087819 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b25 / 103 = 0.243$$c2019$$dQ1$$eT1 000087819 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b28 / 177 = 0.158$$c2019$$dQ1$$eT1 000087819 591__ $$aPHYSICS, APPLIED$$b23 / 154 = 0.149$$c2019$$dQ1$$eT1 000087819 592__ $$a2.18$$b2019 000087819 593__ $$aNanoscience and Nanotechnology$$c2019$$dQ1 000087819 593__ $$aMaterials Science (miscellaneous)$$c2019$$dQ1 000087819 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000087819 700__ $$aLarge, Matthew J. 000087819 700__ $$aOgilvie, Sean P. 000087819 700__ $$aRong, Yuanyang 000087819 700__ $$aLynch, Peter J. 000087819 700__ $$aFratta, Giuseppe 000087819 700__ $$aRay, Santanu 000087819 700__ $$aShmeliov, Aleksey 000087819 700__ $$aNicolosi, Valeria 000087819 700__ $$0(orcid)0000-0002-2071-9093$$aArenal, Raul$$uUniversidad de Zaragoza 000087819 700__ $$aKing, Alice A. K. 000087819 700__ $$aDalton, Alan B. 000087819 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada 000087819 773__ $$g11, 33 (2019), 15550-15560$$pNanoscale$$tNanoscale$$x2040-3372 000087819 8564_ $$s922620$$uhttps://zaguan.unizar.es/record/87819/files/texto_completo.pdf$$yPostprint 000087819 8564_ $$s377562$$uhttps://zaguan.unizar.es/record/87819/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000087819 909CO $$ooai:zaguan.unizar.es:87819$$particulos$$pdriver 000087819 951__ $$a2020-07-16-09:45:41 000087819 980__ $$aARTICLE