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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 81  2022
Review on CeO2-Based Corrosion Coatings
Pavitra Rajendran, Arunpandian Muthuraj and Nagarajan Erumaipatty Rajagounder*
Pages: 158-174
DOI : 10.1080/0371750X.2022.2137701
Abstract
Cerium oxide (CeO2) nanoparticles have emerged as a significant nanomaterial in a wide range of applications, including photocatalysis, corrosion inhibitors, and biological applications. The corrosion resistance hybrid film based on CeO2 nanoparticles turns into a more remarkable inhibitor than hazardous chromate-based protective materials. In this review, we present the impact of CeO2 nanoparticles on corrosion protective properties; synthesis of CeO2 nanoparticles by a green and chemical process; protective CeO2 coating deposited on the substrate by different methods; CeO2-based organic coatings; CeO2-based inorganic coatings and tribological behavior of CeO2. Also, it enlightens the influence of grain size, cracking, pore size, microstructure, and micro-hardness on CeO2-based corrosion coatings. Investigations into the effects of corrosion found that CeO2-based coatings had high potential and a drop in current densities, which are responsible for the inhibitory performance. Additionally, the inclusion of CeO2 nanoparticles results in finer-grained deposits with improved corrosion resistance. Most CeO2 coatings display good corrosion resistance compared to other potential organic and inorganic composite coatings addressed in this section. [Keywords: Corrosion, CeO2 nanoparticles, Preparative methods, CeO2-based coatings, Protecting properties, Corrosion inhibition]
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