Extended Electrochemical Windows Made Accessible by Room Temperature Ionic Liquid/ Organic Solvent Electrolyte Systems

摘要

The electrochemical windows of acetonitrile solutions doped with 0.1 M concentrations of several ionic liquids were examined by cyclic voltammetry at gold and platinum microelectrodes.These results were compared with those observed in the commonly used 0.1 M tetrabutylammonium perchlorate/acetonitrile system as well as with neat ionic liquids.The use of a trifluorotris(penta~fluoroethyl)phosphate~based ionic liquid,specifically,as supporting electrolyte in acetonitrile solutions affords a wider anodic window,which is attributed to the high stability of the anionic component of these intrinsically conductive and thermally robust compounds.