| 초록 |
Electrode dissolution in ionic liquid medium during constant current electrolysis restricts to use in many industrial applications. Keeping this in mind, use of metal complex in ionic liquid can be a good choice to control the electrode dissolution by control the potential window. In the present work, constant current electrolysis were performed in presence and absence of Co(CN)53- to understand the electrode dissolution effect in 1-Butyl-3 Methylimidazolium HexafluoroPhosphate (BMIHFP) ionic liquid. Initial CV analysis in presence of Co(CN)53- using Pt electrode found shortened the potential window of the BMIHFP ionic liquid. Constant current electrolysis was performed with and without Co(CN)53- using different pairs of electrodes such as Pt-Pt, Graphite-PT, Graphite-Graphite, Graphite-DSA, Graphite-BDD and monitored the electrode dissolution by UV-Visible and ICP-OES. Graphite-BDD electrodes pair found no dissolution at 5 mA cm-2 current density with Co(CN)53-. |
