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高等学校化学研究 ›› 2011, Vol. 27 ›› Issue (5): 720-723.

• Articles • 上一篇    下一篇

Preparation and ethanol sensing properties of ZnO nanofibers

FENG Cai-hui, RUAN Sheng-ping, ZHU Ling-hui, LI Chao, LI Wei, CHEN Wei-you, CHEN Li-hua and ZHANG Xin-dong*   

  1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China
  • 收稿日期:2011-06-22 修回日期:2011-08-18 出版日期:2011-09-25 发布日期:2011-09-06
  • 通讯作者: ZHANG Xin-dong E-mail:xindong@jlu.edu.cn
  • 基金资助:

    Supported by the National High-Tech Research and Development Program of China(No.2009AA03Z402), the National  Natural Science Foundation of China(Nos.60977031, 50977038) and the Doctoral Fund of Ministry of Education of China (No.20090061110040).

Preparation and Ethanol Sensing Properties of ZnO Nanofibers

FENG Cai-hui, RUAN Sheng-ping, ZHU Ling-hui, LI Chao, LI Wei, CHEN Wei-you, CHEN Li-hua and ZHANG Xin-dong*   

  1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China
  • Received:2011-06-22 Revised:2011-08-18 Online:2011-09-25 Published:2011-09-06
  • Contact: ZHANG Xin-dong E-mail:xindong@jlu.edu.cn
  • Supported by:

    Supported by the National High-Tech Research and Development Program of China(No.2009AA03Z402), the National  Natural Science Foundation of China(Nos.60977031, 50977038) and the Doctoral Fund of Ministry of Education of China (No.20090061110040).

摘要:

ZnO nanofibers with an average diameter of about 90 nm were prepared by an electrospinning method combined with a calcination process. The as-electrospun nanofibers before and after calcination were characterized by means of differential thermal analysis(DTA), thermal gravimetric analysis(TGA), X-ray diffraction(XRD) and scanning electron microscopy(SEM). The fibers after calcination at 600 °C belong to the hexagonal wurtzite structure. The sensor based on ZnO nanofibers exhibited excellent ethanol sensing properties at 206 °C such as good linear dependence in the low concentration(1―100 μL/L), high response, and good selectivity. Fast response(less than 2 s) and recovery(about 16 s) were also observed in our investigations.

关键词: Electrospinning method, ZnO, Nanofiber, Ethanol, Gas sensor

Abstract:

ZnO nanofibers with an average diameter of about 90 nm were prepared by an electrospinning method combined with a calcination process. The as-electrospun nanofibers before and after calcination were characterized by means of differential thermal analysis(DTA), thermal gravimetric analysis(TGA), X-ray diffraction(XRD) and scanning electron microscopy(SEM). The fibers after calcination at 600 °C belong to the hexagonal wurtzite structure. The sensor based on ZnO nanofibers exhibited excellent ethanol sensing properties at 206 °C such as good linear dependence in the low concentration(1―100 μL/L), high response, and good selectivity. Fast response(less than 2 s) and recovery(about 16 s) were also observed in our investigations.

Key words: Electrospinning method, ZnO, Nanofiber, Ethanol, Gas sensor