Impact of Bath Temperature on the Morphology, Composition, and Corrosion Resistance of Cerium Oxide Coatings Electrodeposited on Zinc
| Authors | Farida Boucetta1,2, Kamel Belmokre1, Faiçal Djani3, Mohammed-Amin Boumehraz4, Kamel Goudjil5 |
| Affiliations |
1Laboratory of Physico-Chemistry Research on Surfaces and Interfaces, University of 20 August 1955, Skikda 21000, Algeria 2Department of Chemistry, Faculty of Exact Sciences and Computer Science, University of Mohammed Seddik Benyahia, Jijel 18000, Algeria 3Molecular Chemistry and Environment Laboratory, Mohammed Khider University Biskra, 07000, Algeria 4Laboratory of Research in Civil Engineering, Mohammed Khider University of Biskra, 07000, Algeria 5Department of Civil Engineering, Mohamed-Cherif Messaadia University of Souk Ahras, 41000, Algeria |
| Е-mail | farida.boucetta@univ-jijel.dz |
| Issue | Volume 17, Year 2025, Number 1 |
| Dates | Received 12 November 2024; revised manuscript received 18 February 2025; published online 27 February 2025 |
| Citation | Farida Boucetta, Kamel Belmokre, и др., J. Nano- Electron. Phys. 17 No 1, 01018 (2025) |
| DOI | https://doi.org/10.21272/jnep.17(1).01018 |
| PACS Number(s) | 81.15.Pq, 81.65.Kn, 81.05.Rm, 82.45.Bb |
| Keywords | CeO2 thin film, Electrodeposition (6) , EIS (2) , Corrosion (2) , Temperature (46) . |
| Annotation |
This study investigates the influence of bath temperature on the electrodeposition of cerium oxide (CeO2) coatings on zinc substrates. The research focuses on how temperature affects the formation, morphology, composition, and corrosion resistance of the deposited films. To analyze these effects, a combination of scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization was employed. The findings reveal that the most corrosion-resistant coatings were obtained when the electrodeposition process was conducted at tem-peratures between 20 °C and 30 °C. Increasing the bath temperature led to significant modifications in coat-ing adhesion and surface morphology, with higher temperatures promoting irregular growth patterns. EDS analysis indicated that as the temperature increased, the deposited layers exhibited a higher Zn content and a lower Ce content, suggesting a temperature-dependent variation in the deposition mechanism. Electrochemical tests confirmed that coatings formed at room temperature provided optimal protection against corrosion, demonstrating improved barrier properties. These results highlight the importance of temperature control in the electrodeposition process to enhance the structural integrity and protective performance of CeO2 coatings, making them suitable for corrosion-resistant applications in various industries. |
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List of References |
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