Anticorrosion Properties of Some Nonionic Surfactants on Carbon Steel in 1 M HCl Environment
| Autor: | Safa Ahmed, A. H. El-Askalany, Abd El-Aziz S. Fouda, A. T. El-Habab |
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| Rok vydání: | 2019 |
| Předmět: |
Arrhenius equation
Tafel equation Langmuir Materials science 020209 energy Mechanical Engineering Materials Science (miscellaneous) Inorganic chemistry Metals and Alloys 02 engineering and technology Electrochemistry Corrosion Dielectric spectroscopy symbols.namesake 020303 mechanical engineering & transports Adsorption 0203 mechanical engineering Mechanics of Materials 0202 electrical engineering electronic engineering information engineering Materials Chemistry symbols Dissolution |
| Zdroj: | Journal of Bio- and Tribo-Corrosion. 5 |
| ISSN: | 2198-4239 2198-4220 |
| DOI: | 10.1007/s40735-019-0248-2 |
| Popis: | The corrosion inhibition behavior in the presence of some surfactants in 1 M HCl medium was examined by mass loss, AC impedance spectroscopy (EIS), potentiodynamic polarization, electrochemical frequency modulation, and surface (scanning electron microscopy, atomic force microscopy) techniques. The C-steel protection rates increased with the increasing amount of surfactant to the 1 M H system and decreases with the increasing temperature of 1 M HCl solution. The adsorption of surfactants on the C-steel surface in HCl follows the Langmuir adsorption mechanism. Arrhenius and transition state equations were applied for the determination of activation parameters. Tafel curves reflect the mixed inhibition behavior of surfactants on the electrode surface in 1 M HCl system. Electrochemical impedance spectroscopy (EIS) method indicates that the C-steel dissolution in HCl environment was fully hindered by charge-transfer processes. |
| Databáze: | OpenAIRE |
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