Palladium, palladium-tin, and palladium-silver catalysts in the selective hydrogenation of hexadienes: TPR, Mossbauer, and infrared studies of adsorbed CO

dc.creatorSales, EA
dc.creatorJove, J
dc.creatorMendes, MD
dc.creatorBozon-Verduraz, F
dc.date2000
dc.dateOCT 1
dc.date2014-12-02T16:27:44Z
dc.date2015-11-26T16:34:53Z
dc.date2014-12-02T16:27:44Z
dc.date2015-11-26T16:34:53Z
dc.date.accessioned2018-03-28T23:17:13Z
dc.date.available2018-03-28T23:17:13Z
dc.identifierJournal Of Catalysis. Academic Press Inc, v. 195, n. 1, n. 88, n. 95, 2000.
dc.identifier0021-9517
dc.identifierWOS:000089835100011
dc.identifier10.1006/jcat.2000.2967
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/59003
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/59003
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/59003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1271336
dc.descriptionAlumina-supported Pd-Sn catalysts prepared by successive impregnation of the precursors, calcination, and reduction contain SnO2 and SnAl2O5, Pd-Sn solid solutions, and intermetallic phases Pd2Sn and Pd3Sn. The formation of Pd3Sn is favored not only by lowering the Sn/Pd ratio but also by introducing tin through ethanolic impregnation. The dilution of surface Pd atoms is confirmed by infrared spectroscopy of adsorbed CO: when the Sn/Pd ratio increases, the linear/bridged intensity ratio increases and the dipole-dipole interactions decrease. TPR experiments show the influence of the support acidity and of the preparation procedure on the reducibility of the various Pd-Sn and Pd-Ag species; in the case of Pd-Ag catalysts, the presence of silver postpones the reduction of PdO in calcined samples. (C) 2000 Academic Press.
dc.description195
dc.description1
dc.description88
dc.description95
dc.languageen
dc.publisherAcademic Press Inc
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Catalysis
dc.relationJ. Catal.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectPd catalysts
dc.subjectPd-Sn catalysts
dc.subjectPd-Ag catalysts
dc.subjectMossbauer spectroscopy
dc.subjectCO adsorption
dc.subjectFTIR spectroscopy
dc.subjectPd-Sn compounds
dc.subjectX-ray-diffraction
dc.subjectPd-ag
dc.subjectBimetallic Catalysts
dc.subjectCarbon-monoxide
dc.subjectAlumina
dc.subjectHexa-1,5-diene
dc.subjectChemisorption
dc.subjectSpectroscopy
dc.subjectPd/al2o3
dc.subjectSystem
dc.titlePalladium, palladium-tin, and palladium-silver catalysts in the selective hydrogenation of hexadienes: TPR, Mossbauer, and infrared studies of adsorbed CO
dc.typeArtículos de revistas


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