Use of an amide-type corrosion inhibitor synthesized from the coffee bagasse oil on the corrosion of Cu in NaCl
| Autor: | N. Velazquez-Torres, H. Martinez, J. Porcayo-Calderon, E. Vazquez-Velez, J. G. Gonzalez-Rodriguez, L. Martinez-Gomez |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Green Chemistry Letters and Reviews, Vol 11, Iss 1, Pp 1-11 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1751-8253 1751-7192 17518253 |
| DOI: | 10.1080/17518253.2017.1404645 |
| Popis: | An amide, namely N-[2-[(2-hydroxyethyl) amino] ethyl]-amide, extracted from the fatty acids contained in the coffee bagasse, has been investigated as a possible green corrosion inhibitor for copper in 3.5% NaCl by using potentiodynamic polarization curves and electrochemical impedance spectroscopy measurements. Results were complemented by detailed scanning electronic microscopy, FTIR and gas chromatography studies. Results have shown that N-[2-[(2-hydroxyethyl) amino] ethyl]-amide is a good, mixed type of corrosion inhibitor, with an efficiency that increases with its concentration but it decreases with a rise in the temperature. It adsorbs chemically onto the copper surface by following a Langmuir type of adsorption isotherm. |
| Databáze: | Directory of Open Access Journals |
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