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This paper discusses the feasibility of tantalum electrodeposition carried out under potential control from 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide [BMPyr][TFSI] room temperature ionic liquid electrolyte containing tantalum pentafluoride (TaF5). The influence of electrode… Click to show full abstract
This paper discusses the feasibility of tantalum electrodeposition carried out under potential control from 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide [BMPyr][TFSI] room temperature ionic liquid electrolyte containing tantalum pentafluoride (TaF5). The influence of electrode nature, electrolyte temperature and electrolysis duration on the morphology, the adherence, the thickness and the crystalline properties of tantalum deposits is reported. The obtained tantalum deposits are analyzed by SEM, XRD, Raman spectroscopy and XPS surface analytical techniques. Pulsed potential electrodeposition is investigated in order to enhance deposit properties. Post electrodeposition thermal treatments are also reported.
Journal Title: Journal of The Electrochemical Society
Year Published: 2021
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