The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+or Na+

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorNorwegian University of Science and Technology-
Autor(es): dc.contributorUniversidade de Brasília (UnB)-
Autor(es): dc.contributorUMR 6118-
Autor(es): dc.contributorUniversidade Federal do Espírito Santo (UFES)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorFundação Universidade Aberta Do Distrito Federal - FUNAB-
Autor(es): dc.contributorUniversidade Federal do ABC (UFABC)-
Autor(es): dc.contributorIFE-
Autor(es): dc.contributorUniversity of Copenhagen-
Autor(es): dc.contributorEuropean Spallation Source-
Autor(es): dc.creatorMichels, L.-
Autor(es): dc.creatorDa Fonseca, C. L.S.-
Autor(es): dc.creatorMéheust, Y.-
Autor(es): dc.creatorAltoé, M. A.S.-
Autor(es): dc.creatorDos Santos, E. C. [UNESP]-
Autor(es): dc.creatorGrassi, G.-
Autor(es): dc.creatorDroppa, R.-
Autor(es): dc.creatorKnudsen, K. D.-
Autor(es): dc.creatorCavalcanti, L. P.-
Autor(es): dc.creatorHunvik, K. W.B.-
Autor(es): dc.creatorFossum, J. O.-
Autor(es): dc.creatorDa Silva, G. J.-
Autor(es): dc.creatorBordallo, H. N.-
Data de aceite: dc.date.accessioned2022-02-22T00:44:37Z-
Data de disponibilização: dc.date.available2022-02-22T00:44:37Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-11-11-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1021/acs.jpcc.0c05847-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205546-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205546-
Descrição: dc.descriptionFor applications benefitting from the swelling properties of nanolayered silicates (clay minerals), it is of paramount importance to understand the hysteresis in the clay-water interaction. In this context, the present work investigates how the thermal history of Na+- and Li+-intercalated fluorohectorite affects the hydration process. By combining X-ray diffraction and thermogravimetric analysis, water adsorption of preheated and non-preheated fluorohectorite was measured and analyzed in terms of the characteristic interlayer distance. The number of water molecules per cation was also inferred. We find that some of the hydration states in preheated samples are suppressed, and transitions to higher hydration states are achieved at higher relative humidity values. This could be due to the initial water content that facilities crystalline swelling. However, the data for Li-fluorohectorite do not exclude the possibility of a low temperature Hofmann-Klemen effect at 150 °C. Our study also provides strong hints that the so-called 1.5 water layer state, observed in previous studies on smectites, is a metastable state. In addition, the impact of a hydrogenous structure in the interlayer space of Li-fluorohectorite on the clay's hydration behavior is demonstrated. The results, if generalized, would have strong implications on a wide range of applications, where the thermal history of smectites is important.-
Descrição: dc.descriptionDepartment of Physics Norwegian University of Science and Technology-
Descrição: dc.descriptionInstituto de Fĺsica Universidade de Brasília-
Descrição: dc.descriptionUniv. Rennes CNRS Géosciences Rennes UMR 6118-
Descrição: dc.descriptionDepartamento de Quĺmica e Fĺsica Universidade Federal Do Espírito Santo-
Descrição: dc.descriptionDepartamento de Quĺmica Faculdade de Ciências Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)-
Descrição: dc.descriptionFundação Universidade Aberta Do Distrito Federal - FUNAB-
Descrição: dc.descriptionCentro de Ciĉncias Naturais e Humanas Universidade Federal Do ABC-
Descrição: dc.descriptionInstitute for Energy Technology IFE-
Descrição: dc.descriptionNiels Bohr Institute University of Copenhagen-
Descrição: dc.descriptionEuropean Spallation Source, Tunavägen 24-
Descrição: dc.descriptionDepartamento de Quĺmica Faculdade de Ciências Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)-
Formato: dc.format24690-24703-
Idioma: dc.languageen-
Relação: dc.relationJournal of Physical Chemistry C-
???dc.source???: dc.sourceScopus-
Título: dc.titleThe Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+or Na+-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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