Chen Yuping

Fudan University, Shanghai, Shanghai Shi, China

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Publications (3)3.46 Total impact

  • Xu Jiaqiang, Chen Yuping, Shen Jianian
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    ABSTRACT: ZnO whiskers were prepared by a solvothermal process with Zn(OH)4(2-), cetyltrimethylammonium bromide (CTAB), n-amyl alcohol and n-hexane at 140 degrees C. The influence of preparation condition on the morphology of the resultant sample was investigated through change zinc salts, co-surfactants, surfactants, reaction temperature, and reaction time. Experimental results revealed that the morphology of as-obtained ZnO was affected strongly by the zinc salts and surfactants. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and electron diffraction (ED). Results showed that ZnO whiskers had the diameters of 100-500 nm, the lengths of several microm, and grown along orientation of [0001]. The gas sensitivities of the as-prepared ZnO whiskers were detected. The results revealed that the ZnO whiskers had excellent potential application for gas sensor.
    Journal of Nanoscience and Nanotechnology 02/2006; 6(1):248-53. · 1.15 Impact Factor
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    ABSTRACT: 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 show much better sensitivity and stability than the conventional materials. The PdO doping can improve the sensitivity and selectivity of the sensors. ZnO nanorods are excellent potential candidates for gas sensors.
    Sensors and Actuators B: Chemical. 01/2006;
  • [Show abstract] [Hide abstract]
    ABSTRACT: 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.
    Journal of Materials Science 01/2005; 40(11):2919-2921. · 2.31 Impact Factor

Publication Stats

90 Citations
3.46 Total Impact Points

Institutions

  • 2006
    • Fudan University
      Shanghai, Shanghai Shi, China
  • 2005–2006
    • Zhengzhou University of Light Industry
      Cheng, Henan Sheng, China
    • Shanghai University
      • Institute of Materials Science
      Shanghai, Shanghai Shi, China