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Corrosion studies of stainless steel protected by a TiO2 thin film deposited on a sulfonate-functionalized self-assembled monolayer |
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| Authors: | Sérgio Meth Natali Savchenko David Starosvetsky Alec Groysman |
| Affiliation: | a Department of Chemistry, Bar Ilan University, Ramat Gan 52900, Israel b Oil Refineries Ltd., R&D Laboratory, Haifa 3100, Israel c Technion, Haifa 32000, Israel d Loker Hydrocarbon Research Institute - Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA |
| Abstract: | Thioacetate hexadecyltrimethoxysilane was deposited on SiO2-coated stainless steel to form a thioacetate-functionalized monolayer. In situ oxidation of the thioacetate yielded a sulfonate-functionalized monolayer. Solution deposition of TiO2 on this monolayer covered the stainless steel with a thin layer of the metal oxide (5-10 nm). Cyclic voltammetry (CV) and potentiostatic current transient demonstrated the efficiency of the corrosion protection in sodium chloride media, including protection against pitting corrosion. |
| Keywords: | A Stainless steel B Cyclic voltammetry B Potentiostatic C Pitting corrosion C Oxide coatings C Passive films |
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