Novel Nb_2O_5 nanorods and polygonal Nb_2O_5platelets were generated by a simple solvothermal technique. The geometry evolution of the resultant Nb_2O_5 from amorphous nanoparticles to crystallized particles, from polygonal platelets to well-elongated nanorods was been studied in detail.The processing parameters, including the reaction temperature, reaction time, concentration of the precursors, and Ph value of the solution, which affect the shape and size of the nanorods, were inves-tigated. The Nb_2O_5 nanorods with different aspect ratios were examined by XRD, SEM and TEM. The experimental results show that Nb_2O_5 nanorod is the orthorhombic structure and well-crystallized. The growth of the nanorods follows their [001] direction. The successful generation of high quality Nb_2O_5nanorods is not only important for transition metal oxide research, but also potentially important for further formation of new Nb-based 1-D nanostructures, such as NbS2 and NbN.
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