同多酸和杂多酸修饰微电极的电化学研究 Ⅶ.磷钒钼杂多酸薄膜修饰微电极和杂多酸/聚苯胺薄膜修饰微电极的制备和电化学性质

本文详细描述了磷钒钼杂多酸（PV2Mo10）极薄膜修饰碳纤维（CF）微电极和PV2Mo10／聚苯胶（PAn）薄膜修饰微电极的制备及其电化学性质。

Electrochemical Study of Isopoly-and Heteropolyoxometallates Film Modified Microelectrodes Part 7. Preparation and Electrochemical Behaviour of 1:2:10-Molybdovanadophosphate [PV_2Mo_(10)]-Type and PV_2Mo_(10)/Polyaniline Films Modified Carbon Fi

In this paper the preparation and electrochemical behaviour of the carbon fiber (CF) microelectrodes nlodified with PV2Mo10 thin film or PV2Mo10/PAn film are described in detail. These modified electrodes have high stability and redox activity in aqueous acidic medium. It is confirmed that the PV2Mo10 can be strongly adsorbed on the surface of CF microelectrode. The pH of the electrolyte solution and the scanning potential range greatly influence the stability and electrochemical properties of the PV2Mo10 thin film or the PV2Mo10/PAn film modified on CF microelectrodes. The thickness of the film and the amount of dopant in the PAn film can be controlled by the experimental parameters such as the charge, time and the ratio of aniline to PV2Mo10 in the modification solution. The experimental results show that the CF microelectrode with PV2Mo10/PAn film possesses a strong catalytic effect on the reduction of chlorate and bromate anions in the solution.