Liquid phase exfoliation of antimonene: systematic optimization, characterization and electrocatalytic properties

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Show simple item record Gibaja, Carlos Assebban, Mhamed Torres, Iñigo Fickert, Michael Sanchis-Gual, Roger Brotons, Isaac Paz, Wendel S. Palacios, Juan José Michel, Enrique G. Abellán, Gonzalo Zamora, Félix
dc.contributor.other UAM. Departamento de Física de la Materia Condensada es_ES
dc.contributor.other UAM. Departamento de Química Inorgánica es_ES 2019-10-22T10:14:37Z 2019-10-22T10:14:37Z 2019-10-21
dc.identifier.citation Journal of Materials Chemistry A 7.39 (2019): 22475-22486 en_US
dc.identifier.issn 2050-7496 (online) en_US
dc.identifier.issn 2050-7488 (print) en_US
dc.description.abstract Antimonene, a novel group 15 two-dimensional material, is attracting great attention due to its outstanding physical and chemical properties. Despite its thermodynamic stability, the pronounced covalent character of the interlayer interactions imposes severe limitations on its exfoliation into mono- and few-layer. Here, we develop a systematic study of liquid phase exfoliation (LPE) with the aim to optimize antimonene production in terms of concentration and dimensional anisotropy, investigating the most relevant experimental factors affecting the exfoliation: pre-processing of pristine antimony, solvent selection based on Hansen solubility parameters and ultrasound conditions. Moreover, exhaustive characterization by means of turbidimetry, XRD, Raman spectroscopy, XPS, AFM, SEM, XEDS and TEM has been carried out. Indeed, we achieved concentration values of ca. 0.368 g L−1 (∼yield of 37 wt%), up to ∼30 times higher compared to the highest value so far reported, with ca. 50% of the nanolayers with heights between 2 and 10 nm and lateral dimensions in the 40–300 nm range. Furthermore, it has been demonstrated that the yield of the process can be enhanced up to ∼90 wt% by recycling the sediment to perform a maximum of 7 cycles. Moreover, we have illustrated the usefulness of this approach by characterizing the electrochemical behaviour of antimonene as a catalyst for the hydrogen evolution reaction (HER). This study provides important insights into the LPE and electrochemical properties of antimonene, allowing its large-scale production and paving the way for its application in fields of utmost importance such as energy storage and conversion or catalysis en_US
dc.description.sponsorship The work has been supported by the European Union (ERC-2018-StG 804110-2D-PnictoChem to G. A.) and the Spanish MICINN (MAT2016-77608-C3-1-P and PCI2018-093081) and MINECO (Structures of Excellence María de Maeztu MDM-2015-0538 and FIS2017-82415-R). G. A. acknowledges support from the Generalitat Valenciana (CIDEGENT/2018/001) and the Deutsche Forschungsgemeinschaft (DFG; FLAG-ERA AB694/2-1). R. S.-G. acknowledges the Spanish MINECO for an FPU fellowship. J. J. P. and W. S. P. acknowledge financial support from the Spanish MINECO through Grant FIS2016-80434-P, the Fundación Ramón Areces, and the European Union Seventh Framework Programme under FLAG-ERA agreement No. 604391. W. S. P. was funded by the CNPq Fellowship programme (Pós-doutorado júnior) under grant 405107/2017-0 and acknowledges the computer resources and assistance provided by the Centro de Computación Científica of the Universidad Autónoma de Madrid and the RES en_US
dc.format.extent 12 pag. en_US
dc.format.mimetype application/pdf en
dc.language.iso eng en
dc.publisher Royal Society of Chemistry en_US
dc.relation.ispartof Journal of Materials Chemistry A en_US
dc.rights © The Royal Society of Chemistry 2019 en_US
dc.subject.other Antimonene en_US
dc.subject.other Liquid-phase exfoliation en_US
dc.title Liquid phase exfoliation of antimonene: systematic optimization, characterization and electrocatalytic properties en_US
dc.type article en
dc.subject.eciencia Química es_ES 2020-10-21
dc.relation.publisherversion es_ES
dc.identifier.doi 10.1039/C9TA06072C es_ES
dc.identifier.publicationfirstpage 22475 es_ES
dc.identifier.publicationissue 39 es_ES
dc.identifier.publicationlastpage 22486 es_ES
dc.identifier.publicationvolume 7 es_ES
dc.relation.projectID Gobierno de España. MAT2016-77608-C3-1-P es_ES
dc.relation.projectID Gobierno de España. PCI2018-093081 es_ES
dc.relation.projectID Gobierno de España. MDM-2015-0538 es_ES
dc.relation.projectID Gobierno de España. FIS2017-82415-R es_ES
dc.relation.projectID Gobierno de España. FIS2016-80434-P es_ES
dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/804110/EU//2D-PnictoChem en_US
dc.relation.projectID info:eu-repo/grantAgreement/EC/FP7/604391 en_US
dc.type.version info:eu-repo/semantics/acceptedVersion en
dc.rights.accessRights embargoedAccess en
dc.authorUAM Palacios Burgos, Juan José (262184)
dc.authorUAM García Michel, Enrique (259812)
dc.authorUAM Zamora Abanades, Félix Juan (258846)

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