Surface charge density determination in electric double layered magnetic fluids

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorTourinho, Francisco Augusto-
Autor(es): dc.creatorCampos, Alex Fabiano Cortez-
Autor(es): dc.creatorSilva, Renata Aquino da-
Autor(es): dc.creatorLara, Maria Cristina Figueiredo Lima e-
Autor(es): dc.creatorSilva, Gerlado José da-
Autor(es): dc.creatorDepeyrot, Jérôme-
Data de aceite: dc.date.accessioned2021-10-14T17:50:26Z-
Data de disponibilização: dc.date.available2021-10-14T17:50:26Z-
Data de envio: dc.date.issued2010-10-13-
Data de envio: dc.date.issued2010-10-13-
Data de envio: dc.date.issued2002-
Fonte completa do material: dc.identifierhttp://repositorio.unb.br/handle/10482/5644-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/617479-
Descrição: dc.descriptionWe analyze potentiometric and conductimetric measurements, simultaneously performed in several complex systems (Brönsted acid-base-type). The results show an excellent agreement between reported and obtained values of the dissociation constants of the involved equilibria. A similar analysis is proposed to account, in electric double layered magnetic fluids (EDL-MF), for the charging of the particle surface based on a proton transfer proccess at the interface with the bulk dispersion. This model allows to relate the pH dependence of the phase diagram to the variations of the nanoparticle surface charge density, which leads to a useful method to monitor the colloidal stability of EDL-MF.-
Formato: dc.formatapplication/pdf-
Direitos: dc.rightsAcesso Aberto-
Palavras-chave: dc.subjectFluidos magnéticos-
Palavras-chave: dc.subjectEDL-MF-
Título: dc.titleSurface charge density determination in electric double layered magnetic fluids-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional – UNB

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