【摘要】 采用阳极氧化法,以NH4F-乙二醇-水溶液为电解质,在钛片上制备了TiO2纳米管阵列,并研究了电解电压和电极距离对TiO2多孔薄膜形貌的影响。结果表明,通过优化电解电压,可以调控二氧化钛纳米管阵列的内径在20～145nm之间;通过调节两电极间的间距,在金属钛片上制备了完整的二氧化钛纳米孔阵列。并采用有限元模拟二氧化钛层中的电流密度分布,探讨了二氧化钛纳米管阵列和纳米孔阵列的形成。更多还原

【Abstract】 Highly ordered titanium oxide nanotube arrays were fabricated by titanium anodic oxidation in a glycol solution containing 5% ammonium fluoride.Influences of anodizing voltage and electrode distance on morphology of the nanotube arrays were investigated.By fine tuning the anodizing voltage,the inner diameter of the titanium oxide nanotube arrays ranged between 20~145 nm.Amost perfect and highly ordered titanium oxide nanopore arrays could also be prepared by properly controlling the distance between two electrodes.Moreover,the morphology variation of the highly ordered titanium oxide nanotube/nanopore arrays was explained by the current density distribution inside the titanium oxide film simulated by finite element analysis.更多还原