1,4-Bis(2-nitrobenzylidene) thiosemicarbazide as Effective Corrosion Inhibitor for Mild Steel  

作　　者：P.Mohan G.Paruthimal Kalaignan 

机构地区：[1]Advanced Materials Research Lab,Department of Industrial Chemistry,Alagappa University

出　　处：《Journal of Materials Science & Technology》2013年第11期1096-1100,共5页材料科学技术（英文版）

基　　金：University Grants Commission (UGC);New Delhi for providing the research fund to carry out this work

摘　　要：The inhibition efficiency of 1,4-bis （2-nitrobenzylidene） thiosemicarbazide （BBTS） on the corrosion of mild steel in 1 mol/L HCI was investigated by potentiodynamic polarization and electrochemical impedance methods. Inhibition efficiency （IE）, corrosion rate and surface coverage were evaluated at different concentrations of BBTS. The results of the investigation showed that this compound had good inhibiting properties for mild steel corrosion in hydrochloric acid and BBTS was a mixed-type inhibitor. BBTS chemisorbed at the electrode surface obeyed Langmuir adsorption isotherm and formed a stable surface complex on the mild steel surface. The synergistic effect of halide ion in acid solution suggested a co-adsorption of BBTS inhibitor by the adsorbed iodide ion.The inhibition efficiency of 1,4-bis （2-nitrobenzylidene） thiosemicarbazide （BBTS） on the corrosion of mild steel in 1 mol/L HCI was investigated by potentiodynamic polarization and electrochemical impedance methods. Inhibition efficiency （IE）, corrosion rate and surface coverage were evaluated at different concentrations of BBTS. The results of the investigation showed that this compound had good inhibiting properties for mild steel corrosion in hydrochloric acid and BBTS was a mixed-type inhibitor. BBTS chemisorbed at the electrode surface obeyed Langmuir adsorption isotherm and formed a stable surface complex on the mild steel surface. The synergistic effect of halide ion in acid solution suggested a co-adsorption of BBTS inhibitor by the adsorbed iodide ion.

关 键 词：Acid inhibition POLARIZATION Langmuir adsorption Electrochemical impedance spectroscopy （EIS） 

分 类 号：TG174.42[金属学及工艺—金属表面处理]