Thermochemical data for n-alkylmonoamines functionalization into lamellar silicate Al-kanemite

dc.creatorGuerra, DL
dc.creatorAiroldi, C
dc.date2011
dc.dateJAN
dc.date2014-07-30T14:06:15Z
dc.date2015-11-26T16:33:44Z
dc.date2014-07-30T14:06:15Z
dc.date2015-11-26T16:33:44Z
dc.date.accessioned2018-03-28T23:15:45Z
dc.date.available2018-03-28T23:15:45Z
dc.identifierJournal Of Chemical Thermodynamics. Academic Press Ltd- Elsevier Science Ltd, v. 43, n. 1, n. 69, n. 74, 2011.
dc.identifier0021-9614
dc.identifierWOS:000284302600012
dc.identifier10.1016/j.jct.2010.08.008
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/58059
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/58059
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1270968
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionAl-kanemite was synthesized by using inorganic salts as a source for silicon and aluminum in the hydrothermal synthesis of the material The resulting solid was used as hosts for functionalization of polar n-alkylamine molecules of the general formula H(3)C(CH(2)),-NH(2) (n = 1 to 5) in aqueous solution The compound was calorimetrically titrated with amine in 1 2-dichloroethane requiring three independent operations (i) titration of matrix with amine (ii) matrix salvation and (iii) dilution of the amine solution From those thermal effects the variation in enthalpy was calculated as (-6 81 -7 76 -8 97 -9 94 and -11 83) kJ mol(-1) for n = 1 to 5 respectively The exothermic enthalpy values reflected a favorable energetic process of amine-host functionalization in 1 2-dichloroethane The original and modified Al kanemite samples were characterized by elemental analysis scanning electron microscopic (SEM) and nuclear magnetic nuclei of silicon 29 and carbon-13 The negative Gibbs free energy results supported the spontaneity of all these functionalization reactions The positive favorable entropic values as carbon chain size increased are in agreement with the free solvent molecules in the solution as the amines are progressively bonded to the crystalline inorganic matrix at the solid/liquid interface (C) 2010 Published by Elsevier Ltd
dc.description43
dc.description1
dc.description69
dc.description74
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherAcademic Press Ltd- Elsevier Science Ltd
dc.publisherLondon
dc.publisherInglaterra
dc.relationJournal Of Chemical Thermodynamics
dc.relationJ. Chem. Thermodyn.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectAl kanemite
dc.subjectAmine
dc.subjectAdsorption
dc.subjectCalorimetry
dc.subjectIntercalation
dc.subjectPhenylphosphonate
dc.subjectPhosphate
dc.subjectAmines
dc.subjectHost
dc.subjectGel
dc.titleThermochemical data for n-alkylmonoamines functionalization into lamellar silicate Al-kanemite
dc.typeArtículos de revistas


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