Thermodynamic, Chemical and Electrochemical Investigations of Calixarene Derivatives as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

被引:0
作者
Kaddouri, M. [1 ]
Bouklah, M. [1 ,2 ]
Rekkab, S. [3 ]
Touzani, R. [1 ,4 ]
Al-Deyab, S. S. [5 ]
Hammouti, B. [1 ]
Aouniti, A. [1 ]
Kabouche, Z. [3 ]
机构
[1] Univ Mohammed Premier, Fac Sci, LCAE URAC18, Oujda 60000, Morocco
[2] Acad Reg Orientale, Ctr Reg Metiers Educ & Format CRMEF, Lab Physicochim Mat, Oujda, Morocco
[3] Univ Mentouri Constantine, Lab Obtent Subst Therapeut, Constantine 25000, Algeria
[4] Univ Mohammed Premier, Fac Pluridisciplinaire Nador, Oujda 60000, Morocco
[5] King Saud Univ, Coll Sci, Dept Chem, Petrochem Res Chair, Riaydh 11451, Saudi Arabia
来源
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2012年 / 7卷 / 09期
关键词
Corrosion; Steel; Calixarene; Inhibition; Hydrochloric acid; Thermodynamic; COLD-ROLLED STEEL; SCHIFF-BASE COMPOUNDS; SULFURIC-ACID; ADSORPTION PROCESSES; METAL DISSOLUTION; C38; STEEL; TEMPERATURE; MEDIA; HCL; OIL;
D O I
暂无
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The focus of this study is to synthesize new calixarene derivatives namely calix[8]arenes (3a) (P1) and (2a) (P2), and to test its performance as corrosion inhibitor of steel in molar HCl at 308K. Polarization and weight loss measurements were used. The inhibition efficiency was found to increase with calixarene derivatives content to attain 95.14% for (P1) and 80% for (P2) at 10(-3)M. Polarization curves revealed that calixarene derivatives affect both cathodic and anodic domains by decreasing current densities and then it may be classified was mixed type inhibitors. The calixarene derivatives tested is adsorbed on the surface according to the Langmuir adsorption isotherm. Free enthalpy of adsorption reveals that calixarene derivatives act from physisorption onto the steel surface.
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页码:9004 / 9023
页数:20
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