引用本文:
杨萍华, 杨建华, 孟广耀, 彭定坤. 全固态SOx(x=2,3)气体传感器性能评价[J]. 应用化学,
1993, 10(4): 58-60.
Citation: Yang Pinghua, Yang Jianhua, Meng Guangyao, Peng Dingkun. THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SOx(x=2,3)GAS SENSOR[J]. Chinese Journal of Applied Chemistry, 1993, 10(4): 58-60.
Citation: Yang Pinghua, Yang Jianhua, Meng Guangyao, Peng Dingkun. THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SOx(x=2,3)GAS SENSOR[J]. Chinese Journal of Applied Chemistry, 1993, 10(4): 58-60.
全固态SOx(x=2,3)气体传感器性能评价
摘要:
SOx(x=2,3)是许多金属冶炼过程及工业用炉排放的有毒气体之一。监控和测定气体中的SOx浓度,对环境保护、防止大气污染和对某些生产工艺控制具有现实意义。已有的SOx检测法是吸收待测气体后再用化学法、色谱法或电化学法分析。这些方法不适宜在高温环境下直接测定,只能间歇操作,难以用于生产过程的连续控制。固体电解质电化学电池型SOx气敏元件,具有灵敏度高,选择性好,响应快,操作简便,体积小且连续可控的特点,已引起人们的极大的关注[1~5]。
English
THE PERFORMANCE EVALUATION OF A FULLY SOLID STATE SOx(x=2,3)GAS SENSOR
Abstract:
The galvanic cell type SOx(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 SOx(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 SOx didn't disturb the measurement.
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Key words:
- SOx gas sensor
- / fast ionic conductor
- / EMF response
- / Ag-β"-Alumina
- / solid electrolyte
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