期刊论文

中文

分析科学学报

1006-6144

2007

23

3

307-310

10.3969/j.issn.1006-6144.2007.03.015

D200522003:湖北省教育厅科学技术研究项目

本校为第一机构

用循环伏安法制备了金属氧化物（TiO_2-WO_3）负载硅钨酸盐聚苯胺膜修饰玻碳电极（PAn/SiW_(12)/TiO_2-WO_3/GC）,优化了聚合条件,并对该化学修饰电极的电化学行为,包括溶液pH值的影响和电极的稳定性等进行了研究.研究结果表明,此修饰电极聚合物膜不但保持了该杂多酸的电化学活性和电催化性能,又具有良好的稳定性.在0.5 mol/LH_2SO_4溶液中,该膜电极中的SiW12的第2个还原峰对BrO_3-有很好电催化活性,催化过程符合EC平行催化机理.

An aniline（An） containing TiO2-WO3 supported Silicotungstic heteropolyanion film modified glassy carbon electrode （PAn/SiW12/TiO2-WO3/GC） has been prepared by cyclic voltametry. Polymerization was optimized,and the electrochemical behaviour of the modified electrode including pH- dependence,stability, etc has been studied. Experimental results show that the modified electrode not only maintains the electrochemical activity and electrocatalytic properties of SiW12, but also exhibites good reproducibility and stability. In 0. 5 mol/L H2SO4 so...