Electrochemical reduction of maleic acid in the ionic liquid was studied by cyclic voltammetry (CV)
chronoamperometry (CA) and in situ FTIR spectroscopyThe results demonstrated that the reduction of maleic acid on Pt electrode is a quasireversible process controlled by diffusionThe diffusion coefficient of maleic acid is determined to be 1.0×10-7cm2·s-1In situ FTIRS results illustrated that the reduction of maleic acid in ionic liquids occurs on the carboxylThe first step is to generate radical anions