A new strategy for the fabrication of the phosphor polyoxomolybdate modified electrode from ionic liquid solutions and its electrocatalytic activities

PMo12 O 40 3 - anion modified electrodes were prepared by simply immersing the glassy carbon electrode in the saturated BMIM+ BF 4 - ionic liquid solution of polyoxometalates (POMs). The electrochemical properties of the as-prepared POM-modified glassy carbon electrode were investigated by cyclic voltammetry, which not only displayed a reversible redox electrochemical behavior and high stability in aqueous solutions, but also exhibited a good electrocatalytic activity toward the reduction of nitrite. Because of the simpleness of the preparation method, stable and reproducible electrochemical properties of the as-prepared POMs modified electrode, the proposed strategy shows remarkable advantages and should be important for practical applications.