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Vol. 137, Issue 2, February 2012, pp. 59-65

 

Bullet

 

Tungsten Oxide Pellet Sensor to Detect H2S Gas at Room Temperature

 

* Rajendra. S. Khadayate and Pruthwiraj. R. Patil

G. D. M. Arts, K. R. N. Commerce and M. D. Science College,

Jamner, Dist-Jalgaon, Maharashtra, India

Tel.: +91 02580 233081, + 91 0257 2263437

E-mail: rskhadayate@yahoo.com

 

 

Received: 2 October 2011   /Accepted: 14 February 2012   /Published: 28 February 2012

Digital Sensors and Sensor Sysstems

 

Abstract: This paper presents H2S gas sensing properties of WO3 pellets at room temperature. In this work, the WO3 pellets were prepared by standard solid state method. The prepared pellets were characterized by x-ray diffraction (XRD) measurements and scanning electron microscopy (SEM). The H2S gas sensing properties of WO3 pellets were investigated at room temperature and at different concentrations of gas. The WO3 pellet exhibit excellent H2S gas sensing properties in air atmosphere at room temperature with fast response and recovery time.

 

Keywords: WO3 Pellet, Solid state method, H2S gas

 

 

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