Enhanced Corrosion Protection of Epoxy/ZnO-NiO Nanocomposite Coatings on Steel

被引：52
作者：
Ibrahim, Muna [1 ]
Kannan, Karthik [1 ]
Parangusan, Hemalatha [1 ]
Eldeib, Shady [1 ]
Shehata, Omar [1 ]
Ismail, Mohammad [1 ]
Zarandah, Ranin [1 ]
Sadasivuni, Kishor Kumar [1 ]
机构：
[1] Qatar Univ, Ctr Adv Mat, POB 2713, Doha, Qatar
来源：
COATINGS | 2020年 / 10卷 / 08期
关键词：
ZnO-NiO; nanocomposite; steel coatings; epoxy resin; anticorrosion; corrosion inhibition mechanism; NANO-COMPOSITE COATINGS; STAINLESS-STEEL; MILD-STEEL; THIN-FILMS; BEHAVIOR; RESISTANCE; ANTICORROSION; PERFORMANCE; CARBON; WEAR;
D O I：
10.3390/coatings10080783
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZnO-NiO nanocomposite with epoxy coating on mild steel has been fabricated by the sol-gel assisted method. The synthesized sample was used to study corrosion protection. The analysis was performed by electrochemical impedance spectroscopy in 3.5% NaCl solution. The structural and morphological characterization of the metal oxide nanocomposite was carried out using XRD and SEM with Energy Dispersive Absorption X-ray (EDAX) analysis. XRD reveals the ZnO-NiO (hexagonal and cubic) structure with an average ZnO-NiO crystallite size of 26 nm. SEM/EDAX analysis of the ZnO-NiO nanocomposite confirms that the chemical composition of the samples consists of: Zn (8.96 +/- 0.11 wt.%), Ni (10.53 +/- 0.19 wt.%) and O (80.51 +/- 3.12 wt.%). Electrochemical Impedance Spectroscopy (EIS) authenticated that the corrosion resistance has improved for the nanocomposites of ZnO-NiO coated along with epoxy on steel in comparison to that of the pure epoxy-coated steel.
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页数：14
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