Anodic deposition of lead dioxide at Nafion® covered gold electrode |
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Authors: | Sanja Burazer Suzana Sop?i? Zoran Mandi? |
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Institution: | 1.Rudjer Bo?kovi? Institute,Zagreb,Croatia;2.Faculty of Chemical Engineering and Technology,University of Zagreb,Zagreb,Croatia |
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Abstract: | Anodic electrodeposition of lead dioxide at the bare and Nafion® covered gold electrode was studied by cyclic voltammetry and chronoamperometry. The results showed that Nafion® layer has a favourable effect on the efficiency of the deposition process which was caused by both thermodynamic and kinetic reasons. Electrodeposition process at Nafion® covered gold electrode goes via Pb(III) intermediate species which are stabilized within Nafion® membrane. The final PbO2 deposit crystallizes in tetragonal β-PbO2 form. |
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