Electrodeposition of copper into functionalized polypyrrole films
Identifieur interne : 000330 ( France/Analysis ); précédent : 000329; suivant : 000331Electrodeposition of copper into functionalized polypyrrole films
Auteurs : Ahmed Zouaoui [France] ; Olivier Stéphan [France] ; Michel Carrier [France] ; Jean-Claude Moutet [France]Source :
- Journal of Electroanalytical Chemistry [ 1572-6657 ] ; 1999.
English descriptors
Abstract
Copper microparticles have been dispersed in anion-exchange polymer films coated on carbon electrodes by oxidative electropolymerization of pyrrole–alkylammonium monomers. Incorporation of copper in polymeric films was effected by impregnation of copper-oxalate anionic complexes followed by an electroreductive precipitation to copper metal, or by electroreduction of polymer coated electrodes immersed in copper–oxalate aqueous solutions. The deposition process was examined by voltammetry. Scanning electron microscopy showed a dispersion of metal particles from 50–100 up to 300 nm, according to the lipophilic character of the polymer, located in a layer near the carbon∣polymer interface. A study of the electrocatalytic activity in the reduction of nitrobenzene to aniline at these materials was performed. The cathodes appeared much more active than bulk copper electrodes.
Url:
DOI: 10.1016/S0022-0728(99)00310-1
Affiliations:
- France
- Auvergne-Rhône-Alpes, Rhône-Alpes, Île-de-France
- Gif-sur-Yvette, Grenoble, Saint Martin d’Hères
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ISTEX:2DE5F8979AAAE687376A593CCB269AF4CAB3E7F6Le document en format XML
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