阳极氧化法制备有序TiO_2纳米管阵列  

Anodic growth of ordered TiO_2 nanotube arrays

作　　者：朱伟庆[1] 王树林[2] 高乾[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海理工大学材料科学工程学院,上海200093

出　　处：《上海理工大学学报》2010年第3期256-258,共3页Journal of University of Shanghai For Science and Technology

基　　金：国家自然科学基金资助项目(50575147);上海市教委重点资助项目(J50503);上海市研究生创新基金资助项目(JWCXSL1002)

摘　　要：以NH4F/乙二醇为电解液对Ti箔进行阳极氧化,通过对溶液中水的含量、氧化电压、时间等参数的控制,制备了高度有序TiO2纳米管.分别利用XRD和SEM对TiO2纳米管阵列的物相组成和形貌结构进行了表征,结合氧化过程电流密度变化探讨了TiO2纳米管的生长机理.研究结果表明:TiO2纳米管阵列的形成须经历致密氧化层的形成、多孔层的形成以及纳米管的形成与稳定生长3个阶段的演化.Ti foil was anodized in ethylene glycol and NH4F etectrolyte, and highly ordered arrays of TiO2 nanotube（NT） were fabricated by varying anodization parameters, including the water content in etectrolyte, anodizing voltage, pH value and bath temperature. The phase of the nanotube was analysed by X-ray diffraction,its shape was observed by SEM and the mechanism of NT array formation was discussed with reference to the curve of current density to time. The formation of TiO2 NT undergoes 3 steps.oxide layer formation, pit formation on the oxide layer, and the shaping and stable growth of the NT.

关 键 词：TIO2纳米管 阳极氧化 有机电解液 

分 类 号：TB321[一般工业技术—材料科学与工程]