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Study on corrosion behavior of new corrosion inhibitor imidazole derivatives for mild steel in oil‐in‐water emulsion
Author(s) -
Xiong Sang,
Wu Hao,
Liu Zhiyuan,
Wang Yichao,
Lin Wei
Publication year - 2021
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.6929
Subject(s) - corrosion , emulsion , chemisorption , imidazole , adsorption , gravimetric analysis , langmuir adsorption model , corrosion inhibitor , electrochemistry , nuclear chemistry , chemistry , sorption isotherm , materials science , organic chemistry , electrode
Two imidazole derivatives, 2‐(2‐((benzo[ d ]thiazol‐2‐ylthio)methyl)‐4,5‐dihydro‐1 H ‐imidazol‐1‐yl)ethan‐1‐ol (BTM) and 2‐(2‐((1 H ‐benzo[ d ][1,2,3]triazol‐1‐yl)methyl)‐4,5‐dihydro‐1 H ‐imidazol‐1‐yl)ethan‐1‐ol (BTMS), as a new corrosion inhibitor were synthesized, and their inhibition behaviors for mild steel contained in emulsion were investigated by gravimetric experiment, electrochemical tests, and theoretical calculations. The results show that the inhibition effect of BTMS is better than that of BTM, the maximum value of the inhibition efficiency reaches 97.9%. The resultant adsorption films from BTM/BTMS adsorbed on mild steel, effectively inhibiting the corrosion of mild steel is mainly through chemisorption and follow to Langmuir's adsorption isotherm.