Solvothermal synthesis of ultralong single-crystalline TiO2 nanowires
Solvothermal synthesis of ultralong single-crystalline TiO2 nanowires
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DOI：
10.1039/b502604k
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发表时间：
2005-06
影响因子：
3.3
通讯作者：
Baomei Wen;Chun‐yan Liu;Yun Liu
中科院分区：
文献类型：
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作者：
Baomei Wen;Chun‐yan Liu;Yun Liu
采用简单、低成本的溶剂热法，以NaOH-乙醇为混合溶剂，成功地合成了直径为20-50 nm、长度为几mm的单晶TiO 2纳米线。合成的纳米线结构均匀，纯度高，结晶度好。通过跟踪样品在各个反应阶段的生长步骤，研究了纳米线的生长机制。溶剂对最终产物的形貌和结晶行为有重要影响。这种新的方法可以应用于其他氧化物纳米线的大规模制备。
Well-defined single crystalline TiO2 nanowires with diameters of 20–50 nm mostly and lengths of up to a few millimeters have been successfully synthesized by a simple, low-cost solvothermal process using the mixed solvent aqueous NaOH–ethanol. The as-synthesized nanowires are structurally uniform, of high purity and show perfect crystallinity. The growth mechanism of the nanowires has been investigated by following the growth steps of the samples at various reaction stages. The solvent significantly influences the morphology and the crystallization behavior of the final products. This novel approach may be applied to the large-scale fabrication of some other oxide nanowires.