Silicate Dip-Coat Mechanism as an Inhibitor Against Copper Dissolution into Alkaline Chloride Media
| Autor: | Rafii Zrelli, M. Rezrazi, William Sassi, Salah Ammar, J.-Y. Hihn, Patrice Berçot |
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| Přispěvatelé: | Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS (UMR_7086)), Université Paris Diderot - Paris 7 (UPD7)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
020209 energy Materials Science (miscellaneous) Inorganic chemistry chemistry.chemical_element 02 engineering and technology Electrochemistry Chloride Dip-coating chemistry.chemical_compound symbols.namesake Adsorption 0203 mechanical engineering 0202 electrical engineering electronic engineering information engineering Materials Chemistry medicine [CHIM]Chemical Sciences Dissolution ComputingMilieux_MISCELLANEOUS Mechanical Engineering Metals and Alloys Langmuir adsorption model Copper Silicate 020303 mechanical engineering & transports chemistry Mechanics of Materials symbols medicine.drug |
| Zdroj: | Journal of Bio-and Tribo-Corrosion Journal of Bio-and Tribo-Corrosion, Springer Internat. Publ., 2020, 6 (2), pp.645-661. ⟨10.1007/s40735-020-00348-9⟩ |
| ISSN: | 2198-4220 2198-4239 |
| DOI: | 10.1007/s40735-020-00348-9⟩ |
| Popis: | The influence of the concentration of silicate and the immersion time on the corrosion and the spontaneous dissolution of copper in 3% NaCl solutions were studied. The investigations involved optimization methods as well as atomic force spectroscopy, electrochemical polarization techniques and scanning electron microscopy. An adherent layer of the inhibitor is postulated to account for the protective effect. During dip coating, the adsorption of silicate (around 23%) has been found to occur onto the surface of copper according to the Langmuir isotherm. The value of standard-free energy of adsorption ($$\Delta G^{^\circ }_{{{\text{ads}}}}$$ = − 31.9 kJ mol−1) suggests chemisorptions of silicate on the copper surface. |
| Databáze: | OpenAIRE |
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