Enhanced Properties of Co–Sn Coatings Electrodeposited from Choline Chloride-Based Deep Eutectic Solvents
| Autor: | João P. Araújo, Carlos M. Pereira, Célia T. Sousa, A. Fernando Silva, Nuno Monteiro Pereira |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Inorganic chemistry Alloy chemistry.chemical_element 02 engineering and technology Electrolyte engineering.material 010402 general chemistry 01 natural sciences Corrosion Metal chemistry.chemical_compound General Materials Science Eutectic system General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium engineering Cyclic voltammetry 0210 nano-technology Cobalt Choline chloride |
| Zdroj: | Crystal Growth & Design. 17:5208-5215 |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/acs.cgd.7b00703 |
| Popis: | Co–Sn alloy films were electrodeposited from choline chloride (ChCl)–ethylene glycol (EG) and choline chloride (ChCl)–urea (U) eutectic mixtures. The deposition of Co–Sn alloy on a copper electrode was studied by cyclic voltammetry, which demonstrates that the coelectrodeposition was achieved. For comparison of properties, Co–Sn alloys were deposited from electrolytes with different Co/Sn ratios. The X-ray diffraction patterns (XRD) showed that the phase structure was affected by the Co/Sn ratio; nevertheless, Co3Sn2 was always the predominant phase. Traces of metallic cobalt were also detected. The nature of the electrolyte used and the metallic composition affected the morphologies of the deposits and their corrosion resistance. The best corrosion resistant coating, with a corrosion potential of −617 mV, was composed by 44.4 wt % of Co and 55.6% of Sn, and it was obtained from the ChCl–EG electrolyte. The magnetic properties of the analyzed samples did not present an evident relationship with the metall... |
| Databáze: | OpenAIRE |
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