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 electroredactive 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.
CITATION STYLE
Zouaoui, A., Stéphan, O., Carrier, M., & Moutet, J. C. (1999). Electrodeposition of copper into functionalized polypyrrole films. Journal of Electroanalytical Chemistry, 474(2), 113–122. https://doi.org/10.1016/S0022-0728(99)00310-1
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