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Search: authors:"Andréa Santos Liu"

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Electrodeposition of polypyrrole films on aluminum surfaces from a p-toluene sulfonic acid medium

Electrodeposition of polypyrrole films on aluminum from aqueous solutions containing p-toluene sulfonic acid and pyrrole was performed by cyclic voltammetry and galvanostatic technique. The influence of applied current density on the morphology of the films was studied by Scanning Electron Microscopy. The films displayed a cauliflower-like structure consisting of micro-spherical...