Electrodeposition of Ni-Cu alloys in an air and water stable room temperature ionic liquid

Ming Jay Deng*, Pei Chiung Lin, I. Wen Sun, P. O.Y.U. Chen, Jeng-Kuei Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Due to the ligand property of the DCA anion, both CuCl and NiCl2 are soluble in l-ethyl-3-methylimidazolium dicyanamide (EMI-DCA) ionic liquid. Cyclic voltammograms of Ni(II), Cu(I), and Ni(II) + Cu(I), respectively, in EMIDCA were recorded on the glassy carbon electrode at 30°C. It is interesting to note that the thermodynamic deposition potentials of Ni and Cu are very close to each other. This is especially favorable for the electrodeposition of Ni-Cu alloys without any additive. The Ni-Cu alloys were electrodeposited using bulk controlled-potential electrolysis experiments. Energy-dispersive spectroscopy (EDS) data indicates that the composition of the Ni-Cu alloys not only depends on the deposition potential, but also on the Cu(I) and Ni(II) concentrations in the melt.

Original languageEnglish
Pages (from-to)582-584
Number of pages3
Issue number8
StatePublished - 1 Jan 2009


  • Dicyanamide
  • Emi-dca
  • Ni-cu alloys
  • Room temperature ionic liquids


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