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The addition of 1-butylpyrrolidine to AlCl_3 results in the formation of an electrolyte that is suited to Al deposition.The feasibility of electrodepositing Al from the synthesized electrolyte was investigated.Several compositions of AlCl_3 and 1-butylpyrrolidine were prepared for this purpose.These mixtures show a different phase behavior at various compositions of AlCl_3 and 1-butylpyrrolidine.IR,Raman and NMR spectroscopy were employed to characterize the synthesized liquids.Among the prepared compositions,1:1.2 mol ratio of 1-butylpyrrolidine:AlCl_3 and the upper phase of 1:1.3 mol ratio of 1-butylpyrrolidine:AlCl_3 were found to be suitable for Al electrodeposition at room temperature(RT).Uniform and thick( mm thick) layers of Al were obtained on copper at RT.Al deposition occured from the cationic species of AlCl_3 xLty(where x r 2,y ? 1–2,and L ? 1-butylpyrrolidine) in this electrolyte.This behavior is contrary to the well investigated classic AlCl_3 based ionic liquids,where the deposition of Al occurs mainly from anionic Al2 Cl 7ions.
The addition of 1-butylpyrrolidine to AlCl 3 results in the formation of an electrolyte that is suited to Al deposition. This feasibility of electrodepositing Al from the synthesized electrolyte was investigated. Compositions of AlCl 3 and 1-butylpyrrolidine were prepared for this purpose. These mixtures show a different phase behavior at various compositions of AlCl 3 and 1 -butylpyrrolidine. IR, Raman and NMR spectroscopy were employed to characterize the synthesized liquid. Among the prepared compositions, 1: 1.2 mol ratio of 1-butylpyrrolidine: AlCl 3 and the upper phase of 1: 1.3 mol ratio of 1-butylpyrrolidine: AlCl 3 were found to be suitable for Al electrodeposition at room temperature (RT) .Uniform and thick (mm thick) layers of Al were obtained on copper at RT. Al deposition occured from the cationic species of AlCl_3 xLty (where xr 2, y -1-2, and L -1-butylpyrrolidine) in this electrolyte. This behavior is contrary to the well investigated classic AlCl 3 based ionic liquids, where the deposition of Al occurs mainly from anionic Al2 Cl 7ions.