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Investigation of the gas-sensitive properties for methanol detection based on ZnO/SnO2 heterostructure

  • Ruiqin Peng
  • , Jinghua Chen
  • , Deping Li
  • , Long Chen
  • , Lijie Ci*
  • *Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

The ZnO/SnO2 composites were synthesized by a simple hydrothermal method. The composite materials are composed of SnO2 nanoparticles and the ZnO nanorods, presenting an agglomerate state that the SnO2 particles was adhered to the surface of the ZnO nanorods. By optimizing the ratio of Zn and Sn atom, it was shown that the composite can be used in high-performance gas sensor. The response of the sensor is up to 80 when the concentration of methanol gas is 100 ppm. The limit of detection is as low as 1 ppm. Furthermore, the sensor has a relatively low optimal operation temperature of 200 °C. The excellent sensing properties are also discussed, which are largely attributed to the facile electronic interaction between SnO2 and ZnO.

Original languageEnglish
Article number032016
JournalIOP Conference Series: Materials Science and Engineering
Volume392
Issue number3
DOIs
StatePublished - 3 Aug 2018
Externally publishedYes
Event2018 International Conference on Manufacturing Technology, Materials and Chemical Engineering, MTMCE 2018 - Zhuhai, China
Duration: 22 Jun 201824 Jun 2018

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