SO2 gas sensor based on Al3+ and O2- ion conducting solids with La2O2SO4 auxiliary electrode

被引：6
|
作者：
Hasegawa, I
Hasegawa, Y
Imanaka, N
机构：
[1] Osaka Univ, Fac Engn, Dept Appl Chem, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Handai Frontier Res Ctr, Suita, Osaka 5650871, Japan
来源：
SENSOR LETTERS | 2005年 / 3卷 / 01期
关键词：
sulfur dioxide; sensor; solid electrolyte; solid state chemistry; rare earth oxysulfate;
D O I：
10.1166/sl.2005.009
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new solid electrolyte type sulfur dioxide (SO2) gas sensor was fabricated by the combination of trivalent aluminum cation conducting (Al0.2Zr0.8)(20/19)Nb(PO4)(3) and divalent oxide anion conducting yttria stabilized zirconia (YSZ) with Li2SO4-doped La2O2SO4 as the sensing auxiliary electrode. The present sensor shows such a practical performance of a rapid, stable, continuous, and reproducible response at 500 degrees C, and the linear relationship which obeys the Nernst relationship was clearly observed between the sensor EMF output and the logarithm of the SO2 gas concentration.
引用
收藏
页码：27 / 30
页数：4
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