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<title lang=en>Adsorption Properties and Inhibition of C38 Steel Corrosion in Hydrochloric Solution by Some Indole Derivates: Temperature Effect, Activation Energies, and Thermodynamics of Adsorption</title>
<creator>ROOS, Christophe</creator>
<creator>Salvin, Paule</creator>
<creator>Ondel, Olivier</creator>
<creator>Robert, Florent</creator>
<creator>Chevalier, Maxime</creator>
<creator>Tomi, F.</creator>
<creator>Sutour, S.</creator>
<creator>Lebrini, Mounim</creator>
<creator>Faustin, M.</creator>
<creator>Maciuk, A.</creator>
<creator>Suedile, Fabienne</creator>
<creator>Amusant, Nadine</creator>
<creator>Traisnel, Michel</creator>
<contributor>UMR EcoFoG, Laboratoire Matériaux et Molécules en Milieu Amazonien (L3MA) ; Conservatoire National des Arts et Métiers (CNAM)</contributor>
<contributor>Ampère, Département Energie Electrique (EE) ; Ampère ; École Centrale de Lyon (ECL) - Université Claude Bernard Lyon 1 (UCBL) - Institut National des Sciences Appliquées (INSA) - Centre National de la Recherche Scientifique (CNRS) - École Centrale de Lyon (ECL) - Université Claude Bernard Lyon 1 (UCBL) - Institut National des Sciences Appliquées (INSA) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM) ; Université Montpellier 1 (UM1) - Université Montpellier 2 - Sciences et Techniques (UM2) - Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Unité d'Amélioration des Espèces Fruitières et Ornementales ; Institut National de la Recherche Agronomique (INRA)</contributor>
<contributor>UMR CNRS 6134 (SPE) ; Université Pascal Paoli (UPP)</contributor>
<contributor>Ressources naturelles ; Sciences pour l'environnement (SPE) ; Université Pascal Paoli (UPP) - Centre National de la Recherche Scientifique (CNRS) - Université Pascal Paoli (UPP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Unité de Catalyse et de Chimie du Solide - UMR 8181 (UCCS) ; Université d'Artois (UA) - Université de Lille, Sciences et Technologies - Ecole Centrale de Lille - Ecole Nationale Supérieure de Chimie de Lille (ENSCL) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Molécules bioactives, conception, isolement et synthèse (MBCIS) ; Université Paris-Sud - Paris 11 (UP11) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire de structures et propriétés de l'état solide (LSPES) ; Université de Lille, Sciences et Technologies - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>international Journal of Corrosion</source>
<identifier>hal-01683120</identifier>
<identifier>https://hal.univ-antilles.fr/hal-01683120</identifier>
<source>https://hal.univ-antilles.fr/hal-01683120</source>
<source>international Journal of Corrosion, 2013, 2013 (26), pp.1 - 13. 〈10.1155/2013/139798〉</source>
<identifier>DOI : 10.1155/2013/139798</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1155/2013/139798</relation>
<language>en</language>
<subject>[CHIM.MATE] Chemical Sciences/Material chemistry</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>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.</description>
<date>2013</date>
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