Green synthesis of 1-benzyl-4-phenyl-1H-1,2,3-triazole, its application as corrosion inhibitor for mild steel in acidic medium and new approach of classical electrochemical analyses

Green synthesis of 1-benzyl-4-phenyl-1H-1,2,3-triazole, its application as corrosion inhibitor for mild steel in acidic medium and new approach of classical electrochemical analyses

•Environmental-friendly synthesis of 1-benzyl-4-phenyl-1H-1,2,3-triazole (BPT).•Non-toxic corrosion inhibitor with average best efficiency of 81% at 2.13 mmol L−1.•BPT acts as a mixed inhibitor for mild steel in HCl 1 mol L−1.•New approach to classical electrochemical analyses.•Atomic Force Microsco...

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Bibliographic Details
Published in:Corrosion science Vol. 149; pp. 185 - 194
Main Authors: Fernandes, Caio Machado, Alvarez, Leonardo X., dos Santos, Nazir Escarpini, Maldonado Barrios, Adriana C., Ponzio, Eduardo Ariel
Format: Journal Article
Language:English
Published: Amsterdam Elsevier Ltd 01-04-2019
Elsevier BV
Subjects:
1,2,3-triazole
Acidic medium
Atomic force microscopy
Chemisorption
Click reaction
Copper catalyzed
Corrosion inhibitor
Corrosion inhibitors
Low carbon steels
Mathematical analysis
Metal surfaces
Mild steel
Organic chemistry
Organic compounds
Oxidation
Protective coatings
Temperature effects
Triazoles
Copper catalyzed
Click reaction
Mild steel
1,2,3-triazole
Corrosion inhibitor
Acidic medium
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Summary:•Environmental-friendly synthesis of 1-benzyl-4-phenyl-1H-1,2,3-triazole (BPT).•Non-toxic corrosion inhibitor with average best efficiency of 81% at 2.13 mmol L−1.•BPT acts as a mixed inhibitor for mild steel in HCl 1 mol L−1.•New approach to classical electrochemical analyses.•Atomic Force Microscopy shows the formation of protective film. 1-benzyl-4-phenyl-1H-1,2,3-triazole was prepared using an environmental friendly and facile synthetic procedure and its performance as an organic corrosion inhibitor for mild steel in 1.0 mol L−1 HCl was investigated using four different methods. An average efficiency of 81.7% was obtained with 2.13 mmol L−1 solutions of the organic compound. A new approach to classical electrochemical analyses confirms the inhibitor adsorption on the metal surface. Temperature effect studies in the oxidation inhibition behavior as well as calculated thermodynamic parameters are consistent with a chemisorption process and Atomic Force Microscopy shows the formation of a protective film.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2019.01.019