Corrosion Inhibition Performance of 3,5-Diamino-1,2,4-triazole for Protection of Copper in Nitric Acid Solution

被引：0

作者：

Zarrouk, A. ^{[1
]}

Hammouti, B. ^{[1
]}

Al-Deyab, S. S. ^{[2
]}

Salghi, R. ^{[3
]}

Zarrok, H. ^{[4
]}

Jama, C. ^{[5
]}

Bentiss, F. ^{[6
]}

机构：

[1] Univ Mohammed Premier, Fac Sci, Lab Appl Chem & Environm LCAE URAC18, M-6000 Oujda, Morocco

[2] King Saud Univ, Coll Sci, Dept Chem, Petrochem Res Chair, Riyadh 11451, Saudi Arabia

[3] Univ Ibn Zohr, ENSA, Equipe Genie Environm & Biotechnol, M-80000 Agadir, Morocco

[4] Fac Sci, Lab Procedes Separat, Kenitra, Morocco

[5] ENSCL, CNRS, Unite Mat & Transformat UMET, UMR 8207, F-59652 Villeneuve Dascq, France

[6] Univ Chouaib Doukkali, Fac Sci, LCCA, M-24000 El Jadida, Morocco

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2012年 / 7卷 / 07期

关键词：

1,2,4-Triazole; Copper; Nitric Acid; Corrosion inhibition; Adsorption; MILD-STEEL CORROSION; CARBON-STEEL; ADSORPTION; DERIVATIVES; TEMPERATURE; HCL; ALUMINUM; BEHAVIOR; MEDIA; IRON;

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 3,5-diamino-1,2,4-triazole (DAT) is investigated as corrosion inhibitor for copper in 2 M HNO3 medium by electrochemical techniques such as electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curves and weight loss measurements. Results show that DAT is a good corrosion inhibitor and its inhibition efficiency increases by increasing the inhibitor concentration. Changes in impedance parameters were indicative of adsorption of DAT on the copper surface, leading to the formation of protective films. Tafel polarization study revealed that DAT acts as a mixed type inhibitor. The inhibitor adsorption process in copper/DAT/nitric acid system was studied at different temperatures (303-343 K) by means of weight loss measurements. The adsorption of DAT on copper surface obeyed Langmuir's adsorption isotherm. The kinetic and thermodynamic parameters for copper corrosion and inhibitor adsorption, respectively, were determined and discussed.

引用

页码：5997 / 6011

页数：15

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