Influence of Humidity on the NO2 Sensing Properties of SrCo0.1Ti0.9O3
Strontium Cobalt Titanate (SCT) was synthesized via solid state route. Phase formation was analyzed using X-ray diffraction (XRD) technique. Resistive sensors were made using screen printing technique and corresponding sensing properties were investigated in dry as well as humid environment (RH 50%). Experimental results demonstrated that sensors displayed least humidity interference at 400 °C. The operating temperature of the sensor was optimized for best responsiveness. These type of sensors can be effectively used in environmental monitoring of NO2 gas at low ppm.
Authors are thankful to UGC-UKIERI Thematic Partnership Grant 2013 and to Star College Grant to Gargi College wide SAN/No.102/IFD/DBT/ SAN/1911/2008–09. We are also thankful to Principal Gargi College and University Science and Instrumentation Centre (USIC), University of Delhi for providing experimental facilities.
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