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Excellent ethanol sensor based on multiwalled carbon nanotube-doped ZnO

  • Article
  • Electron Physics
  • Published:
Chinese Science Bulletin

Abstract

Multiwalled carbon nanotubes (MWNTs) were synthesized through CVD method, and the gas sensitive materials MWNTs/ZnO were obtained by mixing MWNTs and ZnO. The gas sensing properties of the as-prepared materials were investigated. The results show that the gas sensing properties of ZnO sensor are significantly improved by doping MWNTs. The sensitivity, response time and recovery time to 50 ppm ethanol at 260 °C are 46, 4 and 20 s, respectively. We also examined the selectivity of 0.1 wt% MWNTs-doped ZnO sensors to different gases. The results show that the sensor possesses an excellent selectivity to ethanol.

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Acknowledgments

This work was supported by the Jilin Environment Office (2009-22) and Jilin Provincial Science and Technology Department (20100344).

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Authors and Affiliations

  1. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China

    Hao Shan, Li Liu, Lianyuan Wang, Xiaobo Zhang, Xiao Chi & Xiaoqing Bo

  2. College of Electronic Science & Engineering, Jilin University, Changchun, 130012, China

    Changbai Liu

  3. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130012, China

    Kehong Wang

Authors
  1. Hao Shan
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  2. Changbai Liu
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  3. Li Liu
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  4. Lianyuan Wang
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  5. Xiaobo Zhang
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  6. Xiao Chi
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  7. Xiaoqing Bo
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Correspondence to Li Liu.

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Shan, H., Liu, C., Liu, L. et al. Excellent ethanol sensor based on multiwalled carbon nanotube-doped ZnO. Chin. Sci. Bull. 59, 374–378 (2014). https://doi.org/10.1007/s11434-013-0034-3

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  • DOI: https://doi.org/10.1007/s11434-013-0034-3

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