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Synthesis of Four Triazole Compounds and Their Corrosion Inhibitive Effect on Carbon Steel in Hydrochloric Acid Medium
Author(s) -
ZHANG XiaoRu,
XU MinHua,
ZHANG ShuSheng
Publication year - 2008
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200890139
Subject(s) - chemistry , electrochemistry , hydrochloric acid , corrosion , dielectric spectroscopy , carbon steel , carbon 13 nmr , elemental analysis , polarization (electrochemistry) , nuclear chemistry , proton nmr , anode , triazole , inorganic chemistry , organic chemistry , electrode
Four new 1,2,3‐triazoles ( 3a , 3b , 4a and 4b ) have been synthesized selectively via click chemistry approach and characterized by elemental analysis, IR, 1 H NMR, 13 C NMR and single crystal X‐ray crystallographic analysis. The inhibiting action of these compounds against the corrosion of carbon steel in 1.0 mol/L HCl solution was investigated by electrochemical techniques including polarization and electrochemical impedance spectroscopy (EIS), both results of which indicate that these compounds act as good anodic inhibitors. The electrochemical study also shows that 4b is the best inhibitor among the four compounds in this work and its efficiency increases with concentration. The obtained highest IE (inhibition efficiency) of 4b is around 97%.