Enhancement of gas selectivity by additives and pattern recognition in SnO2 sensors

被引：0
|
作者：
Cheong, HW [1 ]
Kim, HP [1 ]
Kim, JM [1 ]
机构：
[1] Agcy Def Dev, Taejon 300600, South Korea
来源：
PROCEEDINGS OF THE IEEE SENSORS 2004, VOLS 1-3 | 2004年
关键词：
gas sensor; gas chromatography; tin oxide; additives; and pattern recognition;
D O I：
10.1109/ICSENS.2004.1426445
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using gas chromatography (GC), the effect of additives on the decomposition reactions of both reducing gases (CH3OH, C2H5OH, etc.) and oxidizing gas (CH3CN) was analyzed for the selection of proper additives. The effect of additives was further investigated in terms of the sensing characteristics. Based on these studies, two sensors, PdCl2-added SnO2 and La2O3-added SnO2, showing discriminative sensing behaviors to CH3CN were selected. By combining the signal patterns obtained from the two sensors, selectivity of the SnO2 sensors for CH3CN was highly enhanced.
引用
收藏
页码：1396 / 1398
页数：3
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