Inhibitive effect of imidazopyridine derivative towards corrosion of C38 steel in hydrochloric acid solution

被引：21
作者：
Ghazoui, A. [1 ]
Saddik, R. [1 ]
Hammouti, B. [1 ]
Zarrouk, A. [1 ]
Benchat, N. [1 ]
Guenbour, M. [2 ]
Al-Deyab, S. S. [3 ]
Warad, I. [3 ]
机构：
[1] Univ Mohammed Premier, Fac Sci, LCAE URAC18, Oujda 60000, Morocco
[2] Univ Mohammed 5, Fac Sci, Lab Electrochim Corros & Environm, Rabat, Morocco
[3] King Saud Univ, Dept Chem, Coll Sci, Petrochem Res Chair, Riyadh 11451, Saudi Arabia
来源：
RESEARCH ON CHEMICAL INTERMEDIATES | 2013年 / 39卷 / 06期
关键词：
Imidazopyridine derivative; Corrosion; C38; steel; HCl; Polarization curves; EIS; 1 M HCL; MILD-STEEL; IRON; ADSORPTION; MECHANISM; COPPER; CU;
D O I：
10.1007/s11164-012-0763-y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of adding 2-phenylimidazo[1,2-a]pyridine-3-carbaldehyde derivative named (P2), newly synthesized on the electrochemical behavior of C38 steel in molar hydrochloric acid was investigated by using the weight-loss method, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) measurements. EIS results show that the transfer resistance increases with the increase of concentration of P2 and it also had an inhibiting effect on C38 steel corrosion in HCl solutions. Weight-loss essays confirm that the corrosion rate decreases as the P2 concentration increases. The inhibition efficiency for this compound studied increased with the increase in the inhibitor concentrations to attain 91.7 % at the 10(-3) M of P2. The potentiodynamic polarization curves indicated that P2 acted as a mixed-type inhibitor in hydrochloric acid.
引用
收藏
页码：2369 / 2377
页数：9
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