TY - JOUR ID - 93223 TI - Effect of Graphene Oxide Decorated With Synthesized Nano-CeO2 on Barrier Properties of Epoxy Anticorrosion Coatings JO - Iranian Journal of Oil and Gas Science and Technology JA - IJOGST LA - en SN - 2345-2412 AU - Nassaj, Zeinab AU - Ravari, Fatemeh AU - Danaee, Iman AD - Ph.D. Student, Department of Chemistry, Payame Noor University, Tehran, P.O. Box 19395-4697, Iran AD - Associate Professor, Department of Chemistry, Payame Noor University, Tehran, P.O. Box 19395-4697, Iran AD - Associate Professor, Abadan Faculty of petroleum Engineering, petroleum university of Technology, Abadan, Iran Y1 - 2020 PY - 2020 VL - 9 IS - 2 SP - 119 EP - 135 KW - Adhesion KW - Coatings KW - corrosion KW - Graphene Oxide Decorated with CeO2 Nanoparticles KW - Impedance DO - 10.22050/ijogst.2019.188155.1509 N2 - In this paper, graphene oxide decorated with cerium oxide (CeO2) nanoparticles was prepared and used as anticorrosive pigments in epoxy nanocomposite coatings. The synthesized nanoparticle was characterized by FTIR, XRD, SEM, and EDX analyses. Graphene oxide decorated with CeO2 nanoparticles was dispersed in epoxy resin by sonication. The optimum nanoparticle content of the epoxy resin was studied by differential scanning calorimetry. The anticorrosive properties of these coatings were investigated using electrochemical impedance spectroscopy method and polarization in corrosive solution. Impedance parameters showed a decrease in the coating resistance over immersion time. The results indicated that the epoxy coatings containing nanoparticles could significantly increase the corrosion resistance of composite coatings compared to those of pure epoxy, and the highest value was obtained for 1% nanocomposite coatings after 270 days of immersion. Pull-off adhesion test showed that the highest value of adhesion was related to the coating containing 1% nanoparticles. UR - https://ijogst.put.ac.ir/article_93223.html L1 - https://ijogst.put.ac.ir/article_93223_cbb7f37c35b05c7d7f10a188c29fc56f.pdf ER -