| Autor: |
V. Protsenko, T. Butyrina, D. Makhota, S. Korniy, F. Danilov |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Archives of Metallurgy and Materials, Vol vol. 68, Iss No 2, Pp 477-482 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2300-1909 |
| DOI: |
10.24425/amm.2023.142425 |
| Popis: |
A deep eutectic solvent, ethaline (as a typical representative of new-generation room temperature ionic liquids), was used to anodically treat the surface of copper-nickel alloy (55 wt.% Cu). Anodic treatment in ethaline allows flexibly affecting the patterns of surface morphology: formation of stellated crystallites and surface smoothing (i.e. electropolishing) are observed depending on the applied electrode potential. The measured values of roughness coefficient ( Ra ) well correlate with the changes in surface morphology. Anodic treatment of Cu-Ni alloy in ethaline contributes to a considerable increase in the electrocatalytic activity towards the hydrogen evolution reaction in an alkaline aqueous medium, which can be used to develop new high-efficient and inexpensive electrocatalysts within the framework of the concept of carbon-free hydrogen economy. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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