Electrochemical and in situ FTIRS of maleic acid reduction in[BMIM]BF_4 on Pt electrode
Electrochemical reduction of maleic acid in the ionic liquid was studied by cyclic voltammetry (CV),chronoamperometry(CA)and in situ FTIR spectroscopy.The results demonstrated that the reduction of maleic acid on Pt electrode is a quasireversible process controlled by diffusion.The diffusion coefficient of maleic acid is determined to be 1.0×10~(-7)cm~2·s~(-1).In situ FTIRS results illustrated that the reduction of maleic acid in ionic liquids occurs on the carboxyl.The first step is to generate radical anions, which are reduced to aldehyde species.