In a recently published survey PANI/Ce(NO3)3 hollow microspheres were employed as functionaladditives in epoxy coating.
Polyaniline (PANI) hollow microspheres have been synthesized by self-assembly method and doped with Poly (2-acrylamido-2-methylpropane sulfonic acid) (PAMPS) and Ce ions. PANI/Ce(NO3)3hollow microspheres of large specific area (10.9 m2/g) and ultrahigh electrical conductivity (46.8 S/cm) were applied asadditives and dispersed in epoxycoating.
Protection without toxic inhibitor
EIS and Tafel polarization tests indicated that PANI/Ce(NO3)3 coating exhibiting excellent anticorrosion performance. Raman spectra revealed that compact and thin Fe3O4 layer has been formed on steel surface to block aggressive electrolytes. In addition, Ce ions promoted the formation of passivation layer and assured protection against corrosion without toxic inhibitor.
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