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EM observation showed that densely assembled TiO2 nanorods have been synthesized by heating-sol-gel template process in a diameter of 150?200 nm and a length of several micrometers by adjusting the dip coating time, dry temperature, dry time, aging period of TiO2 sol and the molar ratio of precursors. XRD proved that the obtained nanorods were anatase-TiO2 nanorods. TEM image revealed that the nanorods were the aggregates of many nanoparticles with about 10 nm in diameter and indistinct polygonal shape. The results of SAED and EDS under TEM confirmed that the obtained nanorods were single-phase anatase-TiO2 with good compositional uniformity in the entire length along the rod axis.
Preparation of TiO2 Nanorods by Heating-Sol-Gel Template Method
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