Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (1): 116-117.

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PREPARATION OF ROOM TEMPERATURE SnO2-α-Fe2O3 GAS SENSOR

Li Wenfan, Liu Xiuying   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, 130022 Changchun
  • Received:1992-01-06 Revised:1992-11-24 Published:1993-02-10 Online:1993-02-10

Abstract: A room temperature gas sensor has been prepared from SnO2-α-Fe2O3 without doping of noble metals. The sensor has a large specific surface area and higher sensitivity for H2, coal gas and LPG, but insensitive to CO and CH4. Its response time is about 25 seconds, recovery time is about 21 seconds, and energy consumption of 0.1 W.

Key words: SnO2, α-Fe2O3, gas sensor, preparation