1Department of Physics, Shri Shivaji Science College, Congress Nagar, Nagpur 440012, India
2Department of Applied Physics, TGP College of Engineering and Technology, Mohagaon, Nagpur, India
Adv. Mater. Lett., 2012, 3 (2), pp 77-81
Publication Date (Web): Apr 14, 2012
Copyright © IAAM-VBRI Press
Optimum alio-valent doping with yttrium sulphate creating 7% vacancy concentration provided promising features from sensor application view. This provides a better option over green Silver Sulphate. The sensors fabricated with the modified sulphate based silver ion conducting solid electrolyte, silver-silver sulphate reference electrode and test gas (Pt) electrodes has been tested over the range of 50-1000 ppm SO2 blended in constant oxygen-partial pressure and argon at 400oC. A promising sensor characteristic behaviour is exhibited by the modified electrolyte - solid solution of silver sulphate with yttrium.
Electrochemical gas sensors, SO2 detectors, fast ionic conductors, sulphate based solid electrolytes, galvanic sensors, environmental pollution