THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SOx(x=2,3)GAS SENSOR

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (4): 58-60.

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THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SO_x(x=2,3)GAS SENSOR

Yang Pinghua, Yang Jianhua, Meng Guangyao, Peng Dingkun

Department of Materials Science and Engineering, University of Science and Techuology of China, 230026 Hefei

Received:1992-07-01 Revised:1993-04-08 Published:1993-08-10 Online:1993-08-10

Abstract

Abstract: The galvanic cell type SO_x(x=2,3) gas sensors consisting of with Ag-β″-alumina as solid electrolyte and porous Pt as working electrode and Ag as reference electrode have been constructed and tested. The electric motion force(EMF) responses were in good agreement with theoretical values for the SO_x(x=2,3) partial pressures over a range from 10 ppm to 10⁴ ppm at the temperature 550～750℃. And CO,CO₂ and NO₂ having the concentrations more than 10 times of SO_x didn't disturb the measurement.

Key words: SO_x gas sensor, fast ionic conductor, EMF response, Ag-β″-Alumina, solid electrolyte

Yang Pinghua, Yang Jianhua, Meng Guangyao, Peng Dingkun. THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SO_x(x=2,3)GAS SENSOR[J]. Chinese Journal of Applied Chemistry, 1993, 0(4): 58-60.

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THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SO_x(x=2,3)GAS SENSOR

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