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Authordc.contributor.authorPonce, Ingrid 
Authordc.contributor.authorSilva, J. Francisco 
Authordc.contributor.authorOñate, Ruben 
Authordc.contributor.authorRezende, Marcos Caroli 
Authordc.contributor.authorPáez, Maritza 
Authordc.contributor.authorZagal Moya, José H. 
Authordc.contributor.authorPavez, Jorge 
Authordc.contributor.authorMendizábal Emaldía, Fernando 
Authordc.contributor.authorMiranda Rojas, Sebastián 
Authordc.contributor.authorMuñoz Castro, Alvaro 
Authordc.contributor.authorArratia Pérez, Ramiro 
Cita de ítemdc.identifier.citationJournal of Physical Chemistry C, Volumen 116, Issue 29, 2018, Pages 15329-15341
Abstractdc.description.abstractWe have prepared self-assembled monolayers (SAMs) of 4-aminothiophenol (4-ATP) and 1-(4-mercaptophenyl)-2,6-diphenyl-4-(4-pyridyl)pyridinium tetrafluoroborate (MDPP) functionalized with iron phthalocyanine (FePc) and copper phthalocyanine (CuPc) adsorbed on gold (111) electrodes. The catalytic activity of these SAMs/MPc was examined for the reduction of O 2 in aqueous solutions and compared to that of bare gold and with gold coated directly with preadsorbed MPc molecules. Scanning tunneling microscopy (STM) studies confirm the functionalization of the 4-ATP by MPc. STM images reveal that iron phthalocyanine molecules are chemically anchored to 4-aminothiophenol organic monolayers, probably having an "umbrella" type orientation with regards to the surface. The electrocatalytic studies carried out with Au/4-ATP/FePc and Au/MDPP/FePc electrodes show that the O 2 reduction takes place by the transfer of 4-electron to give water in contrast to a 2-electron transfer process observed for the
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.uri
Sourcedc.sourceJournal of Physical Chemistry C
Keywordsdc.subjectElectronic, Optical and Magnetic Materials
Keywordsdc.subjectEnergy (all)
Keywordsdc.subjectPhysical and Theoretical Chemistry
Keywordsdc.subjectSurfaces, Coatings and Films
Títulodc.titleEnhancement of the catalytic activity of fe phthalocyanine for the reduction of O 2 anchored to Au(111) via conjugated self-assembled monolayers of aromatic thiols as compared to Cu phthalocyanine
Document typedc.typeArtículo de revista
Indexationuchile.indexArtículo de publicación SCOPUS

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Attribution-NonCommercial-NoDerivs 3.0 Chile
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