Electrochemical formation of an ultrathin electroactive film from 1,10-phenanthroline on a glassy carbon electrode in acidic electrolyte
The electrochemical reduction of 1,10-phenanthroline in aqueous acidic electrolyte at a glassy carbon electrode led to the covalent modification of the electrode. Thereafter, the deposited film can be switched to an electroactive form by electrochemical oxidation. An electroactive film can be also g...
| Publié dans: | Langmuir : the ACS journal of surfaces and colloids. - 1985. - 30(2014), 22 vom: 10. Juni, Seite 6612-21 |
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| Auteur principal: | |
| Autres auteurs: | , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2014
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| Accès à la collection: | Langmuir : the ACS journal of surfaces and colloids |
| Sujets: | Journal Article Research Support, Non-U.S. Gov't Phenanthrolines Carbon 7440-44-0 1,10-phenanthroline W4X6ZO7939 |
| Résumé: | The electrochemical reduction of 1,10-phenanthroline in aqueous acidic electrolyte at a glassy carbon electrode led to the covalent modification of the electrode. Thereafter, the deposited film can be switched to an electroactive form by electrochemical oxidation. An electroactive film can be also generated by alternate reductive and oxidative voltammetric cycling in a 1,10-phenanthroline/aqueous sulfuric acid solution. First, the electrochemical procedure for the formation of a film is presented. Second, the morphology and chemical structure of 1,10-phenanthroline coatings were investigated by atomic force microscopy, time-of-flight secondary ion mass spectrometry, X-ray photoelectron spectroscopy, and electrochemical techniques. The ultrathin (<15 nm) electrodeposited films consist of oligomeric species. The coatings deposited in alternate and/or continuous reductive and oxidative steps contain oxygen atoms incorporated into the oligomer backbone. The preliminary results point out the formation of a dione derivative that is responsible for the electroactivity of the grafted layer |
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| Description: | Date Completed 22.04.2015 Date Revised 07.06.2016 published: Print-Electronic ErratumIn: Langmuir. 2016 Feb 9;32(5):1419. doi: 10.1021/la504842s. - PMID 26820159 Citation Status MEDLINE |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/la500349t |