Electrodeposition of polypyrrole/metal oxide nanocomposites for corrosion protection of mild steel-A comparative study

被引：41

作者：

Babaei-Sati, Rasoul ^{[1
]}

Parsa, Jalal Basiri ^{[1
]}

Vakili-Azghandi, Mojtaba ^{[2
]}

机构：

[1] Bu Ali Sina Univ, Fac Chem, Dept Appl Chem, Hamadan 65174, Iran

[2] Univ Gonabad, Fac Engn, Dept Mat Engn, Gonabad, Iran

来源：

SYNTHETIC METALS | 2019年 / 247卷

关键词：

Conducting polymers; Metal oxide; Nanocomposite; Electrodeposition; Corrosion; ELECTROCHEMICAL SYNTHESIS; CONDUCTING POLYMERS; SURFACE PROTECTION; BIPOLAR PLATES; COATINGS; COMPOSITE; ALUMINUM; ELECTROPOLYMERIZATION; FILM;

D O I：

10.1016/j.synthmet.2018.12.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrodeposition of polypyrrole (PPy) and PPy-metal oxide nanocomposites on mild steel (MS) was carried out in oxalic acid solution by constant potential technique. The protection properties of coatings were studied in 0.5 M H2SO4 solution by Tafel polarization and electrochemical impedance spectroscopy (EIS). The effect of different nanoparticles (Al2O3, ZnO, TiO2, CeO2 and SnO2) on the protection performance of the nanocomposite coatings was compared. The results reveal that PPy/Al2O3 nanocomposite provided the best performance for corrosion protection of the MS by reducing its corrosion current density by 18 times. Furthermore, corrosion protection behavior of PPy/nano-Al2O3 and PPy/micro-Al2O3 composites was compared.

引用

页码：183 / 190

页数：8

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