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Film formation and surface growth on tin electrodes in bicarbonate solutions: an impedance spectroscopy study |
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| Authors: | S.H. Bonilla C.F. Zinola B.F. Giannetti |
| Affiliation: | a Laboratório de Fisicoquímica Teórica e Aplicada, LaFTA, Instituto de Ciências Exatas e Tecnologia, Universidade Paulista, Dr. Bacelar 1212, CEP 04026 002 São Paulo, SP, Brazil b Laboratorio de Electroquímica Fundamental, Facultad de Ciencias, Universidad de la República, Iguá 4225, CP 11400 Montevideo, Uruguay c Unidad Central de Instrumentación Científica (UCIC), Facultad de Ciencias, Universidad de la República, Iguá 4225, CP 11400 Montevideo, Uruguay |
| Abstract: | The electrochemical behaviour of potentiodynamically formed thin anodic films of polycrystalline tin in aqueous sodium bicarbonate solutions (pH ≈ 8.3) were studied using cyclic voltammetry and electrochemical impedance spectroscopy. Different equivalent circuits corresponding to various potential regions were employed to account for the electrochemical processes taking place under each condition. |
| Keywords: | A. Tin B. EIS B. Cyclic voltammetry C. Anodic film |
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