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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/58325
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dc.creatorJoyce Cristina da Cruz Santospt_BR
dc.creatorAna Paula Moreira Barbozapt_BR
dc.creatorMatheus Josué de Souza Matospt_BR
dc.creatorIngrid David Barcelospt_BR
dc.creatorThales Fernando Damasceno Fernandespt_BR
dc.creatorEdmar Avellar Soarespt_BR
dc.creatorRoberto Luiz Moreirapt_BR
dc.creatorBernardo Ruegger Almeida Nevespt_BR
dc.date.accessioned2023-08-29T16:59:23Z-
dc.date.available2023-08-29T16:59:23Z-
dc.date.issued2019-
dc.citation.volume30pt_BR
dc.citation.issue44pt_BR
dc.citation.spage1pt_BR
dc.citation.epage8pt_BR
dc.identifier.doihttps://doi.org/10.1088/1361-6528/ab3732pt_BR
dc.identifier.issn1361-6528pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/58325-
dc.description.resumoWe report on an experimental investigation of serpentine, an abundant phyllosilicate, as an alternative source of two-dimensional (2D) nanomaterials. We show, through scanning probe microscopy (SPM) measurements, that natural serpentine mineral can be mechanically exfoliated down to few-layer flakes, where monolayers can be easily resolved. The parent serpentine bulk material was initially characterized via conventional techniques like XRD, XPS, FTIR and Raman spectroscopies and the results show that it is predominantly constituted by the antigorite mineral. From ab initio calculations using density functional theory, we also determine the geometry and electronic structure of antigorite, the observed structural form of serpentine. Additionally, we further characterized electrical and mechanical properties of the obtained 2D material flakes using SPM and broadband synchrotron infrared nanospectroscopy. Wavelength tuning of the serpentine vibrational resonances, assigned to in- and out-of-plane molecular vibrations, are observed and compared with the FTIR characterization of the parent bulk material. They show that there is no degradation of serpentine’s structural properties during its mechanical exfoliation down to nanometer-thin sheets. Therefore, our results introduce the serpentine mineral as an attractive low-cost candidate in 2D materials applications.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofNanotechnology-
dc.rightsAcesso Restritopt_BR
dc.subjectSerpentine mineralpt_BR
dc.subjectAntigoritept_BR
dc.subjectMechanical exfoliationpt_BR
dc.subject2D materialspt_BR
dc.subjectScanning probe microscopypt_BR
dc.subject.otherSerpentina (Mineralogia)pt_BR
dc.subject.otherScanning probe microscopypt_BR
dc.titleExfoliation and characterization of a two-dimensional serpentine-based materialpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://iopscience.iop.org/article/10.1088/1361-6528/ab3732pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-1807-971Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-0398-3992pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5778-7161pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-3868-9029pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-3356-3312pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6820-0269pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0464-4754pt_BR
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