Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Effect of Working Temperature on Sensitivity of Au/SnO2 Core-Shell Structure Nanoparticles for CO Gas

Au/SnO2 core-shell 나노구조 센서의 구동온도가 CO 감동에 미치는 영향

  • Yu, Yeon-Tae (Division of Advanced Materials Engineering, Chonbuk National University)
  • Received : 2012.10.11
  • Accepted : 2012.11.22
  • Published : 2012.11.30
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Abstract

Au/$SnO_2$ core-shell structure nanoparticles (NPs) were synthesized by microwave hydrothermal method, and the effect of working temperature on sensitivity of Au/$SnO_2$ core-shell NPs for CO gas was investigated. The $SnO_2$ shell layer was consisted of $SnO_2$ primary particles with 4.5 nm diameter. The response of Au/$SnO_2$ core-shell NPs for CO gas was maximized at the working temperature of $350^{\circ}C$ while the sensitivity increased with decreasing the working temperature due to the low grain size effect of $SnO_2$ NPs on the response of CO gas.

Keywords

References

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