TiO_2-磷钨酸复合膜的制备及其性能
Journal of Dalian Jiaotong University（2009）
Abstract
采用溶胶-凝胶法在导电载玻片上制备均匀透明的纳米TiO2薄膜,并以此薄膜作为基体电极,在浓度为0.50 mol/L的H2SO4溶液中用恒电位法制备了TiO2-磷钨酸修饰电极,用SEM分析了不同薄膜的结构,并对其电阻率,电化学行为与光电特性进行了初步研究.实验结果表明,制备TiO2-H3PW12O40复合膜的最优化合成条件为:5.0×10-3mol/L磷钨酸(H3PW12O40)+5.0×10-3mol/L吡咯(PY)+0.5 mol/LH2SO4的混合溶液中于1.4 V恒电压下电沉积60 m in.
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Key words
phosphotungstic acid,photo-electric characteristic,titanium composite membrane,electrochemical deposition
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