Al2O3-coated 3-N-propylpyridinium chloride silsesquioxane polymer film: preparation and electrochemical property study of adsorbed cobalt tetrasulfophthalocyanine

dc.creatorLucho, AMS
dc.creatorPissetti, FL
dc.creatorGushikem, Y
dc.date2004
dc.date37073
dc.date2014-11-15T01:16:21Z
dc.date2015-11-26T16:09:13Z
dc.date2014-11-15T01:16:21Z
dc.date2015-11-26T16:09:13Z
dc.date.accessioned2018-03-28T22:57:48Z
dc.date.available2018-03-28T22:57:48Z
dc.identifierJournal Of Colloid And Interface Science. Academic Press Inc Elsevier Science, v. 275, n. 1, n. 251, n. 256, 2004.
dc.identifier0021-9797
dc.identifierWOS:000221699900034
dc.identifier10.1016/j.jcis.2004.02.016
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/77108
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/77108
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/77108
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1266561
dc.descriptionPorous Al2O3 presenting a specific surface area of S-BET = 105 m(2) g(-1) was coated with 3-N-propylpyridinium chloride silsesquioxane polymer. The ion exchange capacity of this polymer grafted onto an Al2O3 surface, resulting in a material designated as AlSiPy+Cl-, was 1.09 mmol g(-1). Furthermore, a cobalt(II) tetrasulfophthalocyanine anionic complex was immobilized on the chemically modified surface by an ion exchange reaction with a yield of 40 mumol g(-1) (the surface density of the electroactive species is 3.80 x 10(-11) mol cm(-2)). The electrochemical properties of the material obtained, AlSiPy/CoTsPc, were tested for the catalytic oxidation of oxalic acid at 0.77 V vs SCE in 1.0 mol l(-1) KCl solution. Furthermore, a chronoamperometric technique was used with the electrode to test its potential use as a sensor for oxalic acid. The electrode response to oxalic acid concentrations between 1.0 and 3.5 mmol l(-1) was linear with an estimated detection limit of 0.5 mmol l(-1). The charge transfer resistance of the material, measured using the electrochemical impedance spectroscopy technique, was 43 Omega cm(2). (C) 2004 Elsevier Inc. All rights reserved.
dc.description275
dc.description1
dc.description251
dc.description256
dc.languageen
dc.publisherAcademic Press Inc Elsevier Science
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Colloid And Interface Science
dc.relationJ. Colloid Interface Sci.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectaluminum oxide
dc.subject3-N-propylpyridinium chloride silsesquioxane polymer
dc.subjectcobalt tetrasulfophthalocyanine
dc.subjectelectrocatalysis
dc.subjectoxalic acid
dc.subjectelectrochemistry
dc.subjectAcetate Hybrid Material
dc.subjectSilica-gel Surface
dc.subjectSol-gel
dc.subjectElectrocatalytic Oxidation
dc.subjectOxygen Reduction
dc.subjectEthanol Solution
dc.subjectPhthalocyanine
dc.subjectElectrode
dc.subjectCatalysts
dc.subjectAdsorption
dc.titleAl2O3-coated 3-N-propylpyridinium chloride silsesquioxane polymer film: preparation and electrochemical property study of adsorbed cobalt tetrasulfophthalocyanine
dc.typeArtículos de revistas


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