Surface properties of self-assembled monolayer films of tetra-substituted cobalt, iron and manganese alkylthio phthalocyanine complexes” Electrochim. Acta, 55, 7085-7093

dc.contributor.authorAkinbulu, I.A
dc.contributor.authorKhene, S
dc.contributor.authorNyokong, T
dc.date.accessioned2019-08-28T09:02:01Z
dc.date.available2019-08-28T09:02:01Z
dc.date.issued2010
dc.descriptionStaff Publicationsen_US
dc.description.abstractSelf-assembled monolayer (SAM) films of iron (SAM-1), cobalt (SAM-2)and manganese (SAM-3) phthalocyanine complexes, tetra-substituted with diethylaminoethanethio at the non-peripheral positions, were formed on gold electrode in dimethylformamide (DMF). Electrochemical, impedimentary and surface properties of the SAM films were investigated. Cyclic voltammetry was used to investigate the electrochemical properties of the films. Ability of the films to inhibit common faradaic processes on bare gold surface (gold oxidation, solution redox chemistry of [Fe(H O) ] /[Fe(H O) ] and underpotential deposition (UDP) of copper) was investigated. Electrochemical impedance spectroscopy (EIS), using [Fe(CN) ] redox process as a probe, offered insights into the electrical properties of the films/electrode interfaces. Surface properties of the films were probed using atomic force microscopy (AFM) and scanning electron microscopy (SEM). The films were employed for the electrocatalytic oxidation of the pesticide, carbofuran. Electrocatalysis was evidenced from enhanced current signal and less positive oxidation potential of the pesticide on each film, relative to that observed on the bare gold electrode. Mechanism of electrocatalytic oxidation of the pesticide was studied using rotating disc electrode voltammetry.en_US
dc.identifier.citationAkinbulu, I. A., Khene, S., & Nyokong, T. (2010). Surface properties of self-assembled monolayer films of tetra-substituted cobalt, iron and manganese alkylthio phthalocyanine complexes. Electrochimica Acta, 55(23), 7085-7093.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4823
dc.language.isoenen_US
dc.subjectSelf-assembled monolayeren_US
dc.subjectphthalocyanine complexesen_US
dc.subjectMicroscopyen_US
dc.subjectElectrocatalysisen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistryen_US
dc.titleSurface properties of self-assembled monolayer films of tetra-substituted cobalt, iron and manganese alkylthio phthalocyanine complexes” Electrochim. Acta, 55, 7085-7093en_US
dc.typeArticleen_US
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