Sensing of hydrocarbons and CO in low oxygen conditions with tin dioxide sensors:: possible conversion paths

被引:29
作者
Schmid, W [1 ]
Bârsan, N [1 ]
Weimar, U [1 ]
机构
[1] Univ Tubingen, Inst Phys & Theoret Chem, D-72076 Tubingen, Germany
关键词
tin dioxide; low oxygen conditions; consumption;
D O I
10.1016/j.snb.2004.04.079
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The conversion of CO and different hydrocarbons by palladium-doped tin oxide sensors was studied in conditions with low oxygen and low water concentration for temperatures between 200 and 400 degreesC. Although, under normal conditions, oxygen plays an important role in the detection of these reducing analytes, relatively large sensor signals could be observed. For most conditions, carbon dioxide and water could be observed as reaction products even at low oxygen content. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:362 / 368
页数:7
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