6533b7cefe1ef96bd12570d3

RESEARCH PRODUCT

Coupling of electrochemical, electrogravimetric and surface analysis techniques to study dithiocarbamate/bronze interactions in chloride media

H. TakenoutiSuzanne JoiretHubert CachetWafaa QafsaouiMartin W. KendigA. Et TaouilHubert Perrot

subject

Neutral inhibitionMaterials science020209 energyGeneral Chemical EngineeringInorganic chemistry02 engineering and technologyengineering.materialElectrochemistryChlorideCorrosionAdsorptionX-ray photoelectron spectroscopyPolarizationXPS0202 electrical engineering electronic engineering information engineeringmedicine[CHIM]Chemical SciencesGeneral Materials ScienceBronzePolarization (electrochemistry)Dithiocarbamatechemistry.chemical_classificationEISGeneral Chemistry021001 nanoscience & nanotechnologyBronzechemistryRaman spectroscopyengineering0210 nano-technologymedicine.drug

description

International audience; Interaction between ammonium pyrrolidinedithiocarbamate (PDTC) and bronze in 30 g L-1 NaCl was investigated at several concentrations between 0.1 and 10 mM by means of various electrochemical and spectroscopic techniques. Electrochemical measurements revealed a fast adsorption process of PDTC on Cu and Pb and the formation of a thick insulating and protective film with a high surface coverage. At high concentrations, PDTC prevents oxides formation. Surface analyses confirm PDTC adsorption on bronze mainly via interaction between sulphur atoms and Cu sites to form Cu I-PDTC complex.

yearjournalcountryeditionlanguage
2018-01-01Corrosion Science
https://doi.org/10.1016/j.corsci.2017.10.034