Electrochemical investigation of ceria nanoparticles as a corrosion inhibitor for steel in alkaline medium

被引：5
作者：
Bourenane, Nadjette [1 ]
Hamlaoui, Youcef [1 ,3 ]
Pedraza, Fernando [2 ]
机构：
[1] Univ Mohamed Cher Messaadia, Fac Sci & Technol, Lab Phys Matiere & Rayonnement LPMR, Souk Ahras, Algeria
[2] La Rochelle Univ, UMR 7356, Lab Sci Ingenieur Environm LaSIE, Inst LUDI,CNRS, La Rochelle, France
[3] Univ Mohamed Cherif Messaadia, Fac Sci & Technol, Lab Phys Matiere & Rayonnement LPMR, BP 1553, Souk Ahras 41000, Algeria
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2023年 / 74卷 / 09期
关键词：
alkaline medium; bath temperature; corrosion inhibition; ceria nanoparticles; surface morphology; CHLORIDE-CONTAINING CONCRETE; CARBON-STEEL; MILD-STEEL; CEO2; NANOPARTICLES; STAINLESS-STEEL; PORE SOLUTIONS; CONVERSION COATINGS; REINFORCED-CONCRETE; MAGNESIUM ALLOY; BEHAVIOR;
D O I：
10.1002/maco.202313821
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work investigates the synthesis and the corrosion inhibitor efficiency ceria nanoparticles may exert on steel reinforcement in an alkaline solution of saturated Ca(OH)(2) + 0.5 M CaCl2 up to 50 degrees C. The corrosion mechanisms are thoroughly investigated by electrochemical and various characterization techniques. The electrochemical results show that ceria nanoparticles act as an anodic inhibitor and provide maximum inhibition efficiency (80%) at a concentration of 800 ppm. The resulting surface is smooth and free from corrosion products due to the formation of a physically adsorbed film according to the thermodynamic calculations.
引用
收藏
页码：1356 / 1370
页数：15
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