Influence of water content and applied potential on the electrodeposition of Ni coatings from deep eutectic solvents
| Autor: | Monika Lukaczynska, Andrea Ceglia, Krista Van den Bergh, Joost De Strycker, Herman Terryn, Jon Ustarroz, El Amine Mernissi Cherigui |
|---|---|
| Přispěvatelé: | Faculty of Engineering, Materials and Chemistry, Brussels Photonics Team, Materials and Surface Science & Engineering, Electrochemical and Surface Engineering |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Chemical Engineering Inorganic chemistry Trimethylamine Chimie des surfaces et des interfaces 02 engineering and technology Electrolyte Chronoamperometry 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Choline chloride-urea Deep eutectic solvents Electrodeposition Nickel Steel chemistry.chemical_compound chemistry Water splitting Chimie Cyclic voltammetry 0210 nano-technology Eutectic system Choline chloride |
| Zdroj: | Electrochimica Acta, 319 |
| Popis: | Ni coatings were electrodeposited from 1:2 choline chloride (ChCl) - urea (U) deep eutectic solvents (DESs) on low carbon steel. We report on the inter-related influence of water content in the electrolyte and applied potential on the formation of Ni films and their chemical composition and morphology. This was investigated by cyclic voltammetry (CV) and chronoamperometry (CA) in combination with ex-situ characterization techniques (FE-SEM, EDS, XPS and Raman spectroscopy). Ni electrodeposition from DES is shown to be highly complex: Ni+2 reduction is followed by water reduction, which triggers electrolyte decomposition. A water content higher than 4.5%wt and/or performing electrodeposition at potentials more negative than E info:eu-repo/semantics/published |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|