Novel calixarene derivatives as inhibitors of mild C-38 steel corrosion in 1 M HCl

被引：15

作者：

Kaddouri, M. ^{[2
]}

Cheriaa, N. ^{[1
,3
]}

Souane, R. ^{[1
,2
]}

Bouklah, M. ^{[2
]}

Aouniti, A. ^{[2
]}

Abidi, R. ^{[3
]}

Hammouti, B. ^{[2
]}

Vicens, J. ^{[1
]}

机构：

[1] CNRS ULP, UMR 7178, IPCH, ECPM, F-67087 Strasbourg 2, France

[2] Fac Sci, Lab Chim Appl & Environm, Oujda, Morocco

[3] Fac Sci Bizerte, Zarouna Bizerte 7021, Tunisia

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2008年 / 38卷 / 09期

关键词：

corrosion; steel; calixarene; inhibition; hydrochloric acid; chemisorption;

D O I：

10.1007/s10800-008-9546-y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Calixarenes CA1-CA4 containing one to four 4-imidazolylethylamidocarbonyl groups were synthesized and tested as inhibitors for the corrosion of mild steel in 1 M HCl at 308 K. The study was made using Tafel polarisation and weight-loss methods. In contrast to CA1, calixarenes CA2-CA4 were good inhibitors, reaching inhibition efficiencies (E%) of 94 to 100% at 10(-4) M. The values of the inhibition efficiency calculated by the two techniques were in acceptable agreement. E% increased with the number of 4-imidazolylethylamidocarbonyl groups attached to the calixarene. Polarisation curves showed that CA2-CA4 act as mixed-type inhibitors. Their adsorption on the steel surface followed a Langmuir isotherm. Thermodynamic parameters of adsorption were also deduced.

引用

页码：1253 / 1258

页数：6

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