Controlling the morphology of nanoflakes obtained by liquid-phase exfoliation: implications for the mass production of 2D materials

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dc.creatorHelio Chacham
dc.creatorFlavio Orlando Plentz Filho
dc.creatorBernardo Ruegger Almeida Neves
dc.creatorLuiz Gustavo de Oliveira Lopes Cançado
dc.creatorJoyce Cristina da Cruz Santos
dc.creatorFlávia Gonçalves Pacheco
dc.creatorDiego Edison Lopez Silva
dc.creatorRozana Martins
dc.creatorJéssica Pereira Del' Boccio
dc.creatorEder Soares
dc.creatorRodrigo Altoé
dc.creatorClascidia Aparecida Furtado
dc.date.accessioned2025-04-17T15:43:41Z
dc.date.accessioned2025-09-09T01:03:17Z
dc.date.available2025-04-17T15:43:41Z
dc.date.issued2020
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.identifier.doihttps://doi.org/10.1021/acsanm.0c02598
dc.identifier.issn2574-0970
dc.identifier.urihttps://hdl.handle.net/1843/81701
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofACS Applied nano materials
dc.rightsAcesso Restrito
dc.subjectNanomateriais
dc.subject.otherNanoflake
dc.subject.otherStatistical distributions
dc.subject.otherLiquid-phase exfoliation
dc.subject.other2D materials
dc.titleControlling the morphology of nanoflakes obtained by liquid-phase exfoliation: implications for the mass production of 2D materials
dc.typeArtigo de periódico
local.citation.epage12105
local.citation.issue12
local.citation.spage12095
local.citation.volume3
local.description.resumoThe heterogeneous nature of mass-produced 2D material’s nanoflakes requires analysis of size and shape parameters: their distributions around the desired values are essential for production and characterization. In this work, we obtain analytical expressions and behaviors of statistical distributions of experimentally extracted size and shape parameters of nanoflakes obtained by liquid-phase exfoliation. The collected data are open and can be mathematically handled to be analyzed through different associations in different scales, such as the logarithm of the length/thickness (r) and length/width (rL) aspect ratios. We find that ln(r), a shape parameter, follows nearly Gaussian distributions, being an efficient fingerprint to characterize the material type and processing. On the other hand, the logarithms of thickness and volume follow asymmetric distributions with specific asymptotic behaviors, called exponential-power-Gaussian functions, but centrifugation turns both nearly Gaussian-distributed. Finally, the logarithm of the length/width aspect ratio, ln(rL), an in-plane shape parameter, was found to follow the single-parameter probability density distribution xe–λx2. The method detected that centrifugation enhances, by up to threefold, the percentage of flakes with large length/width ratios. This statistical methodology can be incorporated into the quality control of mass production of 2D nanoflakes, whose target applications can be found across the fast-growing nanomaterials’ industry.
local.identifier.orcidhttps://orcid.org/0000-0001-5041-9094
local.identifier.orcidhttps://orcid.org/0000-0002-5304-5419
local.identifier.orcidhttps://orcid.org/0000-0003-0464-4754
local.identifier.orcidhttps://orcid.org/0000-0003-0816-0888
local.identifier.orcidhttps://orcid.org/0000-0002-7073-1226
local.identifier.orcidhttps://orcid.org/0000-0001-7812-4319
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.acs.org/doi/10.1021/acsanm.0c02598

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