Investigation on some Schiff bases as HC1 corrosion inhibitors for copper
Investigation on some Schiff bases as HC1 corrosion inhibitors for copper
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DOI：
10.1016/s0010-938x(98)00183-8
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发表时间：
1999-07-01
影响因子：
8.3
通讯作者：
Liu, DX
中科院分区：
文献类型：
--
作者：
Li, SL;Chen, SH;Liu, DX
研究了几种席夫碱在盐酸介质中对铜的缓蚀作用。以3-甲氧基水杨醛、芳香胺和组氨酸为原料，合成了N，N '-对亚苯基-双（3-甲氧基水杨醛亚胺）（V-pphV）、N，N'-邻亚苯基-双（3-甲氧基水杨醛亚胺）（V-oph-V）和N '-组氨酸-3-甲氧基水杨醛亚胺（V-his）。研究了它们对铜在5%HCl溶液中的缓蚀作用。恒电位极化曲线和交流阻抗谱研究表明，所研究的席夫碱均能抑制溶液中铜的腐蚀，且缓蚀效率随温度的降低或席夫碱浓度的增加而增加。在20 ℃时，浓度为10（-3）mol/dm（3）的V-pph-V席夫碱的缓蚀效率可达99.4%。(C)1999 Elsevier Science Ltd.保留所有权利。
The inhibiting action of some Schiff bases on the corrosion of copper in hydrocholoric has been studied. The Schiff bases N,N'-p-phenylen-bis(3-methoxy-salicylidenimine) (V-pphV), N,N'-o-phenylen-bis(3-methoxy-salicylidenimine) (V-oph-V), and N'-histidine-3-methoxysalicylidenimine (V-his) were synthesized by reacting 3-methoxy-salicylaldehyde with aromatic amines and histidine. The inhibiting action of these Schiff bases has been studied on the corrosion of copper in 5% HCl solution. The potentiostatic polarization and AC impedance studies reveal that all the studied Schiff bases inhibit the corrosion of copper in the solution and that the inhibiting efficiency increases with a decrease in temperature or an increase in concentration of the Schiff base. The Schiff base of V-pph-V at a concentration of 10(-3) mol/dm(3) can give 99.4% inhibition efficiency at 20 degrees C. (C) 1999 Elsevier Science Ltd. All rights reserved.