Excellent ethanol sensor based on multiwalled carbon nanotube-doped ZnO

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• 作者：Hao Shan (1)
  Changbai Liu (2)
  Li Liu (1)
  Lianyuan Wang (1)
  Xiaobo Zhang (1)
  Xiao Chi (1)
  Xiaoqing Bo (1)
  Kehong Wang (3)
  
• 关键词：ZnO ; MWNTs ; Gas sensor
• 刊名：Chinese Science Bulletin
• 出版年：2014
• 出版时间：February 2014
• 年：2014
• 卷：59
• 期：4
• 页码：374-378
• 全文大小：309 KB
• 作者单位：Hao Shan (1)
  Changbai Liu (2)
  Li Liu (1)
  Lianyuan Wang (1)
  Xiaobo Zhang (1)
  Xiao Chi (1)
  Xiaoqing Bo (1)
  Kehong Wang (3)
  
  1. State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, 130012, China
  2. College of Electronic Science & Engineering, Jilin University, Changchun, 130012, China
  3. Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130012, China
  
• ISSN：1861-9541

文摘

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.