[article]
| Titre : |
Use of caffeine-containing MIL-100 (Fe) metal organic framework as a high-performance smart anticorrosion coating to protect stainless steel in 3.5 wt% NaCl solution |
| Type de document : |
texte imprimé |
| Auteurs : |
Zahra Akhavan-Bahabadi, Auteur ; Hamid R. Zare, Auteur ; Zahra Mohammadpour, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 883-898 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Caféine
Composés organométalliques
Electrochimie
Encapsulation
Matériaux intelligents
Métaux -- Revêtements protecteurs
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
In this study, caffeine-loaded MIL-100 (Fe), caffeine@MIL-100 (Fe), was used as a smart corrosion-inhibiting coating to protect 308L-16 stainless steel (308L-16 SS). For this purpose, a thin film of the smart anticorrosion caffeine@MIL-100 (Fe) coating was deposited on an 308L-16 SS surface using a decanoic acid self-assembled monolayer. A significant encapsulation efficiency for caffeine loading in the MIL-100 (Fe) metal organic framework was obtained as 17.8%. The experimental data indicated that the caffeine@MIL-100 (Fe) coating would release the caffeine very rapidly as the solution became acidified around the corrosion sites and formed a protective layer to prevent from penetrating solution into the substrate. The EIS results and the Tafel plots showed that the proposed smart coating has an excellent performance to protect 308L-16 SS from corrosion in saline media. Based on the results, decreasing the solution pH would cause the MIL-100 (Fe) framework to decompose and subsequently release caffeine at the 308L-16 SS surface. |
| Note de contenu : |
- EXPERIMENTAL : Materials and instruments - Preparation of MIL-100 (Fe) - Preparation of caffeine@MIL-100 (Fe) microcapsules - Deposition of MIL-100 (Fe) and caffeine@MIL-100 (Fe) coatings on the 308L-16 SS
- RESULTS AND DISCUSSION : Characterization - Optimization of the time required to coat a MOF thin film on decanoic acid SAM-modified 308L-16 SS - Electrochemical study of the caffeine@MIL-100 (Fe) coating in a 3.5 wt% NaCl solution
- Table 1 : Corrosion parameters derived from the Tafel plots for the bare 308L-16 SS, MIL-100 (Fe), and caffeine@ MIL-100 (Fe) after immersion in the 3.5 wt% NaCl solution for 1, 24, 72, and 168 h
- Table 2 : Corrosion parameters derived from the EIS plots for the bare 308L-16 SS, MIL-100 (Fe), and caffeine@MIL-100 (Fe) after immersion in the 3.5 wt% NaCl solution for 1, 24, 72, and 168 h |
| DOI : |
https://doi.org/10.1007/s11998-022-00709-8 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007/s11998-022-00709-8.pdf?pdf=button% [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39435 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 883-898
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Use of caffeine-containing MIL-100 (Fe) metal organic framework as a high-performance smart anticorrosion coating to protect stainless steel in 3.5 wt% NaCl solution in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
