Anodic and Cathodic Processes In Piperidinium-Based Ionic Liquid Mixtures With AlCl3
MetadataShow full item record
Low temperature molten salts based on ionic liquids have received considerable attention over the last 3 decades as potential alternative solvents for aluminium reduction. Recent reports in the literature have identified 1-propyl-1-methylpiperidinium bis(trifluoromethylsulfonyl) amide ([C3mpip][NTf2]) as a promising candidate for low temperature aluminium reduction processes. The formation of aluminium metal deposition was confirmed in these studies by both visual inspection and SEM-EDX analysis in the selected mixtures with AlCl3, but little is known about the anodic processes occurring in the cell. This work presents the results of a preliminary electrochemical study of the anodic and cathodic reactions occurring in the ionic liquid mixtures 1-propyl-1-methylpiperidinium bis(trifluoromethylsulfonyl) amide ([C3mpip][NTf2]) with AlCl3 at different temperatures, concentrations and electrode materials. Analysis of voltammetric responses of [C3mpip][NTf2]-[AlCl3]x for x=0.3 indicated that the anodic process is limited by mass transport for this particular electrolyte composition. In addition, the formation of Cl2 was confirmed to take place at a dimensionally stable anode. Aluminium deposition experiments gave inconsistent results however and gas analysis indicated that the [C3mpip][NTf2]-[AlCl3]x mixture at a prolonged elevated temperature at least partially decomposes into fluoro-carbons and chloro-compounds.
Showing items related by title, author, creator and subject.
Wang, Kai (2012)Atmospheric leaching (AL) of low-grade nickel laterite ores can produce a pregnant leach solution (PLS) containing significant amounts of impurities such as trivalent iron, aluminium and chromium ions. Purification of PLS ...
Aluminium oxidation at high anodic potentials in an AlCl <inf>3</inf>-containing air- and water-stable ionic liquid solutionVeder, Jean-pierre; Horne, M.; Rüther, T.; Bond, A.; Rodopoulos, T. (2013)The observation of a multi-step stripping process at high positive potentials is reported for aluminium electrodeposition from a solution of AlCl3 in the air- and water-stable ionic liquid 1-butyl-1- methylpyrrolidinium ...
Li, Z.; Liu, Jian; Niu, B.; Li, J.; Kang, F. (2018)© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Herein, a novel graphite–graphite dual ion battery (GGDIB) based on a AlCl3/1-ethyl-3-methylimidazole Cl ([EMIm]Cl) room temperature ionic liquid electrolyte, using ...