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Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
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Volume 1, issue 1
J. Sens. Sens. Syst., 1, 29–32, 2012
https://doi.org/10.5194/jsss-1-29-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
J. Sens. Sens. Syst., 1, 29–32, 2012
https://doi.org/10.5194/jsss-1-29-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.

Short communication 10 Dec 2012

Short communication | 10 Dec 2012

Moderate-temperature operable SO2 gas sensor based on Zr4+ ion conducting solid electrolyte

Y. Uneme, S. Tamura, and N. Imanaka Y. Uneme et al.
  • Department of Applied Chemistry, Faculty of Engineering, Osaka University 2-1, Yamadaoka, Suita, Osaka 565-0871, Japan

Abstract. A solid electrolyte type sulfur dioxide (SO2) gas sensor that can operate at moderate temperatures was fabricated using Zr4+ ion conducting Zr39/40TaP2.9W0.1O12 solid electrolyte with 0.7La2O2SO4 − 0.3(0.8Li2SO4 + 0.2K2SO4) having a large surface area and Zr metal as the auxiliary sensing electrode and reference electrode, respectively. Since the present sensor showed a quantitative, reproducible and rapid response which obeys the theoretical Nernst relationship even at 400 °C, it is a potential on site SO2 gas sensing tool operable at moderate temperatures around 400 °C.

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