ABSTRACT
This chapter focuses on the imidazolium-based Ionic liquids (IL) -materials and their applications in electroanalytical chemistry from the laboratory as well as other groups. IL is low-melting-point salts, thus forming liquids that consist only of cations and anions. The immobilization process transferred the desired properties of ILs to the solid supports. And more important, to date, difficulties in effective immobilization of generic ILs on the electrode substrate have greatly hindered research on the electrocatalysis of ILs. Polyelectrolytes functionalized IL could be incorporated into a sol–gel organic-inorganic hybrid material to improve charge-transfer efficiency and substrate diffusion in chemically modified electrodes. IL functional materials extend their scope of applications in traditional electroanalytical chemistry merely as green solvents and enable them to be modified on the electrode more conveniently and effectively. The unique properties of ILs have been well transferred into the ILs materials, and due to synergistic effect, some new electrocatalytic activities are observed.
