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http://hdl.handle.net/10773/40454| Title: | The effect of carboxylate compounds on Volta potential and corrosion inhibition of Mg containing different levels of iron |
| Author: | Yasakau, K. A. Maltseva, A. Lamaka, S. V. Mei, Di Orvi, H. Volovitch, P. Ferreira, M. G. S. Zheludkevich, M. L. |
| Keywords: | Magnesium Carboxylic acid Chelate complex EIS AFM/SKPFM Photoluminescence spectroscopy |
| Issue Date: | Jan-2022 |
| Publisher: | Elsevier |
| Abstract: | Corrosion protection and surface properties of Magnesium (Mg) containing 51 ppm Fe (HP-Mg) and 341 ppm Fe (CP-Mg) were assessed by EIS, AFM/SKPFM, and photoluminescence spectroscopy in NaCl solutions with/ without fumarate (Fum), 2,5-pyridinedicarboxylate (PDCA) and salicylate (Sal) carboxylates. The PDCA was effective in corrosion inhibition of HP-Mg and CP-Mg, while the Sal was efficient in inhibition of CP-Mg only. Volta potential (VPD) changes on Mg were evaluated considering the contribution of molecular dipoles and chemical dipoles due to interaction of carboxylate groups present in carboxylates with Mg. VPD of CP-Mg increased due to adsorption of Fe(III)-salicylate complexes and salicylate molecules. |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/40454 |
| DOI: | 10.1016/j.corsci.2021.109937 |
| ISSN: | 0010-938X |
| Appears in Collections: | CICECO - Artigos DEMaC - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| The effect of carboxylate compounds on Volta potential CS 194 2022 109937.pdf | 14.91 MB | Adobe PDF |  |
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