Cobalt(ii) Porphyrin Complex Immobilized On The Binary Oxide Sio 2/sb2o3: Electrochemical Properties And Dissolved Oxygen Reduction Study

dc.creatorRibeiro E.S.
dc.creatorDias S.L.P.
dc.creatorGushikem Y.
dc.creatorKubota L.T.
dc.date2004
dc.date2015-06-26T14:23:53Z
dc.date2015-11-26T14:12:42Z
dc.date2015-06-26T14:23:53Z
dc.date2015-11-26T14:12:42Z
dc.date.accessioned2018-03-28T21:13:23Z
dc.date.available2018-03-28T21:13:23Z
dc.identifier
dc.identifierElectrochimica Acta. , v. 49, n. 5, p. 829 - 834, 2004.
dc.identifier134686
dc.identifier10.1016/j.electacta.2003.10.001
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0346724538&partnerID=40&md5=271326178c3b88082ef922d4667e8b12
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/94280
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/94280
dc.identifier2-s2.0-0346724538
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1242080
dc.descriptionIn this work, SiO2/Sb2O3 prepared by the sol-gel processing method, having a specific surface area, SBET, of 790 m2g-1, an average pore diameter of 1.9 nm and 4.7 wt. % of Sb, was used as substrate base for immobilization of the 5,10,15,20-tetrakis(1-methyl-4-pyridyl)-21H,23H-porphine ion. Cobalt(II) ion was inserted into the porphyrin ring with a yield of complex bonded to the substrate surface of 59.4 μmolg-1. A carbon paste electrode of this material was used to study, by linear sweeping voltammetric and chronoamperometric techniques, the electrocatalytic reduction of dissolved oxygen. The reduction, at the electrode solid-solution interface, occurred at -0.25 V versus SCE in 1.0 moll-1 KCl solution, pH 5.5, by a four electron mechanism. The electrode response was invariant under various oxidation-reduction cycles showing that the system is chemically very stable. Such characteristics allowed the study of the electrode response towards various dissolved oxygen concentrations using the chronoamperometry technique. The cathodic peak current intensities plotted against O2 concentrations, between 1.0 and 12.8 mgl-1, showed a linear correlation. The electrode response time was very fast, i.e. about 1 s. This study was extended using the electrode to determine the concentration of dissolved oxygen in sea water samples. © 2003 Elsevier Ltd. All rights reserved.
dc.description49
dc.description5
dc.description829
dc.description834
dc.descriptionHench, L.L., West, J.K., (1990) Chem. Rev., 90, p. 33
dc.descriptionZaitseva, G., Gushikem, Y., (2002) J. Braz. Chem. Soc., 13, p. 611
dc.descriptionZaitseva, G., Gushikem, Y., Ribeiro, E.S., Rosatto, S.S., (2002) Electrochim. Acta, 47, p. 1469
dc.descriptionFrancisco, M.S.P., Gushikem, Y., (2002) J. Mater. Chem., 12, p. 2552
dc.descriptionRibeiro, E.S., Rosatto, S.S., Gushikem, Y., Kubota, L.T., (2003) J. Solid State Electrochem., 7, p. 665
dc.descriptionCastellani, A.M., Gonçalves, J.E., Gushikem, Y., (2002) J. New Mater. Electrochem. Syst., 5, p. 169
dc.descriptionAlfaya, A.A.S., Kubota, L.T., (2002) Quim. Nova, 25, p. 835
dc.descriptionCastellani, A.M., Gonçalves, J.E., Gushikem, Y., (2001) Electroanalysis, 13, p. 1165
dc.descriptionCastellani, A.M., Gushikem, Y., (2000) J. Colloid Interface Sci., 230, p. 195
dc.descriptionFerreira, C.U., Gushikem, Y., Kubota, L.T., (2000) J. Solid State Electrochem., 4, p. 298
dc.descriptionWalcarius, A., (2001) Chem. Mater., 13, p. 3351
dc.descriptionWalcarius, A., (2001) Electroanalysis, 13, p. 701
dc.descriptionDias, S.L.P., Gushikem, Y., Ribeiro, E.S., Benvenutti, E.V., (2002) J. Electroanal. Chem., 523, p. 64
dc.descriptionPessoa, C.A., Gushikem, Y., (2001) J. Porphyrins Phthalocyanines, 5, p. 537
dc.descriptionRibeiro, E.S., Gushikem, Y., Biazzotto, J.C., Serra, O.A., (2002) J. Porphyrins Phthalocyanines, 6, p. 527
dc.descriptionChung, T.D., Anson, F.C., (2001) J. Electroanal. Chem., 508, p. 115
dc.descriptionYuasa, M., Nishihara, R., Shi, C., Anson, F.C., (2001) Polym. Adv. Technol., 12, p. 266
dc.descriptionChang, C.J., Deng, Y.Q., Shi, C.N., Chang, C.K., Anson, F.C., Nocera, D.G., (2000) Chem. Commun., p. 1355
dc.descriptionYamamoto, K., Taneichi, D., (2000) Chem. Lett., p. 4
dc.descriptionRibeiro, E.S., Gushikem, Y., (1999) Electrochim. Acta, 44, p. 3589
dc.descriptionYamamoto, K., Taneichi, D., (1999) J. Inorg. Organomet. Polym., 9, p. 231
dc.descriptionSong, E.H., Shi, C.N., Anson, F.C., (1998) Langmuir, 14, p. 4315
dc.descriptionD'souza, F., Hsieh, Y.Y., Wickman, H., Kutner, W., (1997) Electroanalysis, 9, p. 1093
dc.descriptionD'Souza, F., Hsieh, Y.Y., Wickman, H., Kutner, W., (1997) Chem. Commun., p. 1191
dc.descriptionCorwin, A.H., Chivvis, A.B., Poor, R.W., Whitten, D.G., Baker, E.W., (1968) J. Am. Chem. Soc., 90, p. 6577
dc.descriptionPottier, R.H., Kennedy, J.C., Chow, Y.F.A., Cheung, F., (1988) Can. J. Spectrosc., 33, p. 57
dc.descriptionNi, C.L., Abdalmuhdi, I., Chang, C.K., Anson, F.C., (1987) J. Phys. Chem., 91, p. 1158
dc.descriptionDurand, R.R., Bencosme, C.S., Collman, J.P., Anson, F.C., (1983) J. Am. Chem. Soc., 105, p. 2710
dc.descriptionIler, R., (1979) The Chemistry of Silica, p. 185. , Wiley, New York
dc.descriptionBard, A.J., Faulkner, L.R., (1980) Electrochemical Methods, p. 221. , John Wiley & Sons, New York
dc.descriptionKarlin, K.D., Gultneh, Y., (1987) Progress in Inorganic Chemistry, 35, p. 219. , S.J. Lippard (Ed.), John, New York
dc.descriptionDurand, R.R., Anson, F.C., (1982) J. Electroanal. Chem., 134, p. 273
dc.descriptionFair, G.M., Geyer, J.C., Okun, D.A., (1971) Elements of Water Supply and Wastewater Disposal, Second Ed., p. 449. , Wiley, New York
dc.languageen
dc.publisher
dc.relationElectrochimica Acta
dc.rightsfechado
dc.sourceScopus
dc.titleCobalt(ii) Porphyrin Complex Immobilized On The Binary Oxide Sio 2/sb2o3: Electrochemical Properties And Dissolved Oxygen Reduction Study
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución