دورية أكاديمية
أعرض في EDS

Adsorption Properties and Inhibition of C38 Steel Corrosion in Hydrochloric Solution by Some Indole Derivates: Temperature Effect, Activation Energies, and Thermodynamics of Adsorption

التفاصيل البيبلوغرافية
العنوان: Adsorption Properties and Inhibition of C38 Steel Corrosion in Hydrochloric Solution by Some Indole Derivates: Temperature Effect, Activation Energies, and Thermodynamics of Adsorption
المؤلفون: M. Lebrini, F. Robert, C. Roos
المصدر: International Journal of Corrosion, Vol 2013 (2013)
بيانات النشر: Hindawi Limited, 2013.
سنة النشر: 2013
المجموعة: LCC:Materials of engineering and construction. Mechanics of materials
مصطلحات موضوعية: Materials of engineering and construction. Mechanics of materials, TA401-492
الوصف: The corrosion rates in the presence of some indole derivates, namely, 9H-pyrido[3,4-b]indole (norharmane) and 1-methyl-9H-pyrido[3,4-b]indole (harmane), as inhibitors of C38 steel corrosion inhibitor in 1 M HCl solution, were measured by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques, in the range of temperatures from 25 to 55∘C. Results obtained revealed that the organic compounds investigated have inhibiting properties for all temperatures. The inhibition was assumed to occur via adsorption of the indole molecules on the metal surface. Adsorption of indole derivates was found to follow the Langmuir isotherm. The apparent activation energies, enthalpies, and entropies of the dissolution process and the free energies and enthalpies for the adsorption process were determined by potentiodynamic polarization and electrochemical impedance. The fundamental thermodynamic functions were used to collect important information about indole inhibitory behaviour.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1687-9325
1687-9333
Relation: https://doaj.org/toc/1687-9325; https://doaj.org/toc/1687-9333
DOI: 10.1155/2013/139798
URL الوصول: https://doaj.org/article/67deed42da0548b9948d6577bb92e545
رقم الأكسشن: edsdoj.67deed42da0548b9948d6577bb92e545
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16879325
16879333
DOI:10.1155/2013/139798