Gas sensor investigation based on a catalytically activated thin-film thermopile for H2O2 detection

被引：19
|
作者：
Kirchner, Patrick [1 ,2 ]
Ng, Yue Ann [1 ]
Spelthahn, Heiko [1 ,2 ]
Schneider, Andreas [3 ]
Henkel, Hartmut [3 ]
Friedrich, Peter [4 ]
Kolstad, Jens [5 ]
Berger, Joerg [6 ]
Keusgen, Michael [7 ]
Schoening, Michael J. [1 ,2 ]
机构：
[1] Aachen Univ Appl Sci, Inst Nano & Biotechnol, D-52428 Julich, Germany
[2] Res Ctr Julich, Inst Bio & Nanosyst IBN 2, D-52425 Julich, Germany
[3] Von Hoerner & Sulger GmbH, D-68723 Schwetzingen, Germany
[4] Aseptiksyst & Foodtechnol, D-52441 Linnich, Germany
[5] Elopak, N-3431 Spikkestad, Norway
[6] Filldesign GmbH, D-41199 Gudderath, Germany
[7] Univ Marburg, Inst Pharmaceut Chem, D-35032 Marburg, Germany
来源：
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2010年 / 207卷 / 04期
关键词：
gas sensor; porous materials; decomposition reaction; heterogeneous catalysis; thermoelectric devices; HYDROGEN-PEROXIDE; VAPOR; FOOD;
D O I：
10.1002/pssa.200983309
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In aseptic filling systems, hydrogen peroxide vapour is commonly used for the reduction of microbial contaminations in carton packages. In this process, the germicidal efficiency of the vapour depends especially on the H2O2 concentration. To monitor the H2O2 concentration, a calorimetric H2O2 gas sensor based on a catalytically activated thin-film thermopile is investigated. Two different sensor layouts, namely a circular and a linear form, as well as two various material pairs such as tungsten/nickel and gold/nickel, have been examined for the realization of a thin-film thermopile. Additionally, manganese oxide and palladium particles have been compared as responsive catalysts towards H2O2. The thin-film sensors have been investigated at various H2O2 concentrations, gas temperatures and flow rates. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：787 / 792
页数：6
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