CeO2 nanoparticles (nanoceria) were obtained from homogeneous precipitation of cerium chloride in presence of citric acid.
The 0.5 and 1.0 wt.% of nanoceria reduced corrosion reactions rates at the interface coating layer/steel.
The 2.0 and 3.0 wt.% of nanoceria improved the physical barrier effect of the waterborne coatings.