Gas sensing properties of ZnO nanorods prepared by hydrothermal method

• DOI: 10.1007/s10853-005-2435-4
• Publication Date: 2005-06-13T18:25:13Z
• Authors: Xu Jiaqiang; Chen Yuping; Li Yadong; Shen Jianian
• Keywords: Nanorod; Hydrothermal Synthesis

ZnO nanorods are prepared by a hydrothermal process with cetyltrimethylammonium bromide (CTAB) and zinc powder at 182°C. The samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The gas sensing properties of the materials have been investigated. The results indicate that the as-prepared ZnO nanorods are uniform with diameters of 40–80 nm and lengths about 1 μm, the relatively high sensitivity and stability of these sensors made from ZnO nanorods demonstrate the potential for developing a new class of stable and very sensitive sensors.