Electrochemical Synthesis, Characterization and Corrosion Properties of POA−MoO42- Coating in 3.5% NaCl
| Autor: | B. D. Burkitbayeva, Ye.G. Bakhytzhan, Kh. Avchukir, Akmaral Argimbayeva, Gulmira Rakhymbay, R.Dzh. Jumanova |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope General Chemical Engineering Oxalic acid 02 engineering and technology engineering.material 010402 general chemistry Electrochemistry 01 natural sciences Corrosion lcsh:Chemistry chemistry.chemical_compound Coating General Materials Science Aqueous solution General Chemistry Adhesion 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences lcsh:QD1-999 chemistry engineering Cyclic voltammetry 0210 nano-technology Nuclear chemistry |
| Zdroj: | Eurasian Chemico-Technological Journal , Vol 22, Iss 4, Pp 305-313 (2020) |
| ISSN: | 2522-4867 |
| DOI: | 10.18321/ectj992 |
| Popis: | Polyanisidine (POA) and polyanisidine-molybdate (POA−MoO42-) coatings have been successfully synthesized on steel grade СТ3 from aqueous solutions of oxalic acid by electrochemical method using cyclic voltammetry. The morphology and composition of these films were characterized by scanning electron microscopy (SEM) and energydispersive X-ray (EDAX) methods. It was proven that the introduction of MoO42- into the polyanisidine matrix raised the corrosion resistance of the POA coating and also improved its adhesion properties. The protective properties of steel grade CT3 with POA and POA-MoO42- films were studied using potentiodynamic polarization in 3.5% NaCl solution. The results showed that ions improve anti-corrosion properties of POA films. |
| Databáze: | OpenAIRE |
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