Ren X, Gershon T, Iza D C, Muñoz-Rojas D, Musselman K, Macmanus-Driscoll J L
School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
Nanotechnology. 2009 Sep 9;20(36):365604. doi: 10.1088/0957-4484/20/36/365604. Epub 2009 Aug 18.
Large-area free-standing arrays of TiO(2) nanorods and nanotubes were selectively synthesized on transparent conducting indium tin oxide substrates using sol-gel electrophoresis and anodic alumina (AAO) thin film templates. The effect of sol-gel ageing on the growth of TiO(2) was explained, providing a tailored ability to produce nanotubes and nanorods. An annular tungsten base electrode, stemming from the anodization of the AAO template, was found to be crucial to the growth of nanotubes. This was supported by a study of substrate annealing in a reducing atmosphere. The work can be readily adapted for the fabrication of free-standing arrays of other metal, metal oxide, and complex oxide nanorod and nanotube arrays on conducting substrates.
利用溶胶-凝胶电泳法和阳极氧化铝（AAO）薄膜模板，在透明导电氧化铟锡衬底上选择性地合成了大面积的独立式TiO₂纳米棒和纳米管阵列。解释了溶胶-凝胶老化对TiO₂生长的影响，从而具备了定制生产纳米管和纳米棒的能力。发现源自AAO模板阳极氧化的环形钨基电极对纳米管的生长至关重要。在还原性气氛中对衬底进行退火处理的研究也证实了这一点。这项工作可轻松应用于在导电衬底上制备其他金属、金属氧化物和复合氧化物纳米棒及纳米管阵列的独立式阵列。
