Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4-amino-4H,3,5-di(methoxy)-1,2,4-triazole (ATD), BATD, and DBATD on copper metal in 1N H2SO4 / S. John in Materials and corrosion, Vol. 62 N° 11 (Novembre 2011)  

Public ISBD [article]  inMaterials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp. 1031–1041 Titre : Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4-amino-4H,3,5-di(methoxy)-1,2,4-triazole (ATD), BATD, and DBATD on copper metal in 1N H2SO4 Type de document : texte imprimé Auteurs : S. John, Auteur ; J. Joy, Auteur ; M. Prajila, Auteur Année de publication : 2012 Article en page(s) : pp. 1031–1041 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Copper Corrosion inhibitor DFT EIS Molecular dynamics Tafel Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : The interaction of 4-amino-4H,3,5-di(methoxy)-1,2,4-triazole (ATD), (4-(benzylideneamino)-4H-1,2,4-triazole-3,5-diyl) dimethanol (BATD), and (4-(4-(dimethylamino) benzylideneamino))-4H-1,2,4-triazole-3,5-diyl) dimethanol (DBATD) on copper in 1 N sulfuric acid was investigated by potentiodynamic polarization (Tafel), ac impedance (EIS), molecular dynamic (MD) studies, and quantum chemical calculations at 300 K. Polarization studies clearly showed that ATD, BATD, and DBATD act as mixed type inhibitors. As the electron density around the inhibitor molecule increases due to substitution, the inhibition efficiency also increases correspondingly. Quantum chemical approach was used to calculate some electronic properties of these molecules to ascertain the correlation between inhibitive effect and molecular structure. Both the experimental and theoretical studies agree well in this regard and confirm that DBATD is having a better interaction with the metal surface in 1 N sulfuric acid than BATD and ATD. The adsorption behaviors of these molecules on the copper surface have been studied using MDs method and density functional theory. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201005938/abstract [article] Electrochemical, quantum chemical, and molecular dynamics studies on the interaction of 4-amino-4H,3,5-di(methoxy)-1,2,4-triazole (ATD), BATD, and DBATD on copper metal in 1N H2SO4 [texte imprimé] / S. John, Auteur ; J. Joy, Auteur ; M. Prajila, Auteur . - 2012 . - pp. 1031–1041. Génie Mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp. 1031–1041 Mots-clés : Copper Corrosion inhibitor DFT EIS Molecular dynamics Tafel Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : The interaction of 4-amino-4H,3,5-di(methoxy)-1,2,4-triazole (ATD), (4-(benzylideneamino)-4H-1,2,4-triazole-3,5-diyl) dimethanol (BATD), and (4-(4-(dimethylamino) benzylideneamino))-4H-1,2,4-triazole-3,5-diyl) dimethanol (DBATD) on copper in 1 N sulfuric acid was investigated by potentiodynamic polarization (Tafel), ac impedance (EIS), molecular dynamic (MD) studies, and quantum chemical calculations at 300 K. Polarization studies clearly showed that ATD, BATD, and DBATD act as mixed type inhibitors. As the electron density around the inhibitor molecule increases due to substitution, the inhibition efficiency also increases correspondingly. Quantum chemical approach was used to calculate some electronic properties of these molecules to ascertain the correlation between inhibitive effect and molecular structure. Both the experimental and theoretical studies agree well in this regard and confirm that DBATD is having a better interaction with the metal surface in 1 N sulfuric acid than BATD and ATD. The adsorption behaviors of these molecules on the copper surface have been studied using MDs method and density functional theory. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201005938/abstract

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