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• W1973765053 startingPage "931" @default.
• W1973765053 abstract "Primary alkyl iodides (RI) have been found to react with a cathodically charged glassy carbon surface at potentials more negative than -1.7 V vs Ag/AgCl. In aprotic solvents, this reaction results in grafting of the alkyl chains onto carbon. It is proposed that the process corresponds to the cathodic charge of graphitized and fullerenized zones present in carbon followed by a displacement reaction (analogous to a nucleophilic attack) toward alkyl iodides. This new mode of grafting is applied to the immobilization of ferrocene used as an electrochemical probe. The present work points out the reaction of ω-iodoalkylferrocenes and quantifies the level of grafting of alkyl chains via this promising method for modification of carbon surfaces. Coverage levels were found to be high, reaching the apparent surface concentrations of 8 × 10(-9) mol cm(-2). These large values are explained on the basis of swelling of the interface provoked by progressive charging of the carbon surface via insertion of tetraalkylammonium cations concomitantly with the substitution process. Alkylferrocene layers deposited onto carbon were found to be chemically and electrochemically stable." @default.
• W1973765053 created "2016-06-24" @default.
• W1973765053 creator A5019963874 @default.
• W1973765053 creator A5086497272 @default.
• W1973765053 date "2011-11-30" @default.
• W1973765053 modified "2023-10-07" @default.
• W1973765053 title "Novel Method for Grafting Alkyl Chains onto Glassy Carbon. Application to the Easy Immobilization of Ferrocene Used as Redox Probe" @default.
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• W1973765053 doi "https://doi.org/10.1021/la204028u" @default.
• W1973765053 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22074004" @default.
• W1973765053 hasPublicationYear "2011" @default.
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