Thin amorphous platinum films photochemically obtained, and their potential use as modified electrodes

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dc.contributor.authorTejos, M
dc.contributor.authorSchrebler, R
dc.contributor.authorDiaz, FR
dc.contributor.authordel Valle, MA
dc.date.accessioned2024-01-10T14:22:13Z
dc.date.available2024-01-10T14:22:13Z
dc.date.issued2002
dc.description.abstractThin amorphous nanostructured Pt films have been photochemically obtained by means of direct UV radiation (254 nm) of an amorphous Pt[CH3(CH2)(8)COCHCOC4H9](3)K film deposited on Si(100) and on ITO glass through the spin-coating technique. The product of this photolysis was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and microanalysis. After that, the film was subject to cycles for 1 h, between -0.30 and 1.20 V, in a 0.50 M H2SO4 electrolytic solution. It may be observed that the peak potential shifts in approximately 0.04 V towards less positive values for the modified system, if compared with the platinum bulk. It only showed one peak in the hydrogen discharge if compared with the two peaks in the Pt bulk. Based on these data, the ITO/Pt modified system was tested as an electrodic substrate for aniline polymerization in 0.50 M H2SO4. The polymeric deposit was obtained at lower potentials than those required when the Pt bulk is used as an electrode. (C) 2002 Elsevier Science B,V, All rights reserved.
dc.fechaingreso.objetodigital16-04-2024
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/S0040-6090(02)00129-3
dc.identifier.eissn1879-2731
dc.identifier.issn0040-6090
dc.identifier.urihttps://doi.org/10.1016/S0040-6090(02)00129-3
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79885
dc.identifier.wosidWOS:000176019900002
dc.information.autorucQuímica;Del Valle M;S/I;54928
dc.information.autorucQuímica;Díaz F;S/I;98205
dc.issue.numero2
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final177
dc.pagina.inicio172
dc.publisherELSEVIER SCIENCE SA
dc.revistaTHIN SOLID FILMS
dc.rightsacceso restringido
dc.subjectplatinum
dc.subjectamorphous materials
dc.subjectelectrochemistry
dc.subjectmodified electrode
dc.subjectCATALYTIC-PROPERTIES
dc.subjectCOMPLEXES
dc.subjectPALLADIUM
dc.subjectPOLYTHIOPHENE
dc.subjectPRECURSORS
dc.subjectDEPOSITION
dc.subjectLIGANDS
dc.subjectPT+PB
dc.titleThin amorphous platinum films photochemically obtained, and their potential use as modified electrodes
dc.typeartículo
dc.volumen409
sipa.codpersvinculados54928
sipa.codpersvinculados98205
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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