Journal of The Electrochemical Society · 1980 · 28 citations · 0 references
Natural SciencesChemistryMaterials ScienceCorrosion ScienceSpectroscopySurface ScienceCorrosion EngineeringCorrosion EvaluationCorrosion MechanismsCorrosion TestingCorrosion-resistant MaterialsRaman SpectroscopyCorrosion FilmsPh-dependent Corrosion BehaviorPolarizationPotentiodynamic PolarizationPourbaix DiagramsSpectroscopic CharacterizationSpectroscopic IdentificationSulfate-induced Corrosion Of Lead
The Pourbaix diagram was investigated by examining potentiostatically oxidized lead samples using Raman and infrared spectroscopy. In 0.1M sulfate solutions surface film compositions were not in complete agreement with predictions of the calculated potential‐pH diagram. The Pourbaix diagram did not predict the formation of under any conditions; however, spectra indicated the presence of the oxide at certain potentials in acid and neutral solutions and at all potentials above the immunity region in basic solutions. Spectroscopic identification of insoluble surface species was in agreement with potentiodynamic polarization curves.