Abstract

The electrochemical property of C 70 films was studied by cyclic voltammetry and electrochemical quartz crystal microbalance in organic electrolyte solution. The electrochemical behavior of C 70 film shows that both formation of solvent separated ion pair in monoanion C 70 state and formation of contact ion pair in dianion C 70 state were observed. Mechanisms of these processes which involved film swelling with solvent and intercalation of cations into film were proposed. Tetramethylammonium perchlorate was used as supporting electrolyte in acetonitrile solution. Thin films of C70 were prepared by solvent evaporation method on hot glassy carbon electrode.

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