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Journal of Materials Engineering and Performance

, Volume 28, Issue 11, pp 6649–6655 | Cite as

Ethanol Monitoring Gas Sensor Based on Flower-Shaped Copper Sulfide by a Facile Hydrothermal Method for Marine Transportation

  • Dapeng Wang
  • Menghan Sun
  • Guoqing Feng
  • Chengwen SongEmail author
Article
  • 40 Downloads

Abstract

Flower-shaped CuS as a p-type gas-sensing material was synthesized by a facile hydrothermal method in this study. Morphology, structure, and chemical composition of the synthesized CuS gas-sensing material were analyzed by SEM, XRD, XPS, and N2 adsorption adsorption–desorption technique. Gas-sensing properties of the as-prepared CuS sensors were also investigated toward ethanol monitoring. The results showed that the flower-like CuS nanostructures consisted of interconnected nanosheets and exhibited good crystallinity. With the increase in ethanol concentration, the sensitivity of the CuS sensor significantly increased and indicated a roughly linear relationship at the optimal operating temperature of 260 °C. The ethanol-selective characteristics of the CuS sensor against other interfering gases including methanol, benzene, dichloromethane, and hexane were studied, and the gas response of the CuS sensor synthesized at 170 °C toward 100 ppm ethanol was 5.22, which was significantly higher than all the other gases. Moreover, 14-day continuous measurement further confirmed the excellent stability of the CuS sensor.

Keywords

CuS ethanol gas sensor monitoring 

Notes

Acknowledgment

This work was supported by the National Natural Science Foundation of China (21476034) and Key Research &Development Project of Liaoning Province (2017308005).

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Copyright information

© ASM International 2019

Authors and Affiliations

  • Dapeng Wang
    • 1
  • Menghan Sun
    • 2
  • Guoqing Feng
    • 2
  • Chengwen Song
    • 2
    Email author
  1. 1.Navigation CollegeDalian Maritime UniversityDalianChina
  2. 2.College of Environmental Science and EngineeringDalian Maritime UniversityDalianChina

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