Synergistic Effect of Sn Doping in TiO2 Nanoparticles as an Additive in Anti-Corrosion Coatings

IF 1.6 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI:10.1002/maco.202414492

Fariza Abdul Rahman, Wan Jefrey Basirun, Mohd Rafie Johan

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Abstract

Corrosion is a major problem and protective coatings offer an effective solution. However, organic coatings are often associated with microcracks caused by the evaporation of solvents during coating preparation. This study investigates the use of titanium dioxide (TiO₂) nanoparticles as a coating additive to protect mild steel surfaces. Additionally, doping TiO₂ with tin (Sn) is believed to enhance its properties due to the reduced size of the nanoparticles. These nanoparticles were synthesised using the sol–gel method and subjected to various analyses. The coated mild steel samples were prepared using the dip-coating method and immersed in 3.5 wt.% sodium chloride (NaCl) solution for 30 days. Electrochemical impedance spectroscopy (EIS) and Tafel polarisation showed that the Sn-doped TiO₂ nanoparticles as an additive improved the corrosion resistance, as evidenced by a positive shift in corrosion potential (E_corr) and reduced corrosion current density (I_corr).

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来源期刊

Materials and Corrosion-werkstoffe Und Korrosion 工程技术-材料科学：综合

CiteScore

3.70

自引率

11.10%

发文量

199

审稿时长

1.4 months

期刊介绍： Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention. Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.