Title of article
Sensing of CH4, CO and ethanol with in situ nanoparticle aerosol-fabricated multilayer sensors
Author/Authors
Sahm، نويسنده , , Thorsten and Rong، نويسنده , , Weizhi and Bârsan، نويسنده , , Nicolae and Mنdler، نويسنده , , Lutz and Weimar، نويسنده , , Udo، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
6
From page
63
To page
68
Abstract
A new nanoparticle aerosol method was used to synthesize and directly deposit multilayers of metal oxides on sensor substrates. Flame spray pyrolysis (FSP) was used to fabricate Pd/SnO2 and undoped SnO2 sensors with Pd/Al2O3 filter layers on top. These sensing layers were studied for their gas sensing properties and catalytic conversion for CH4, CO and ethanol. The filter effect of the Pd/Al2O3 layer was compared to single layer sensors and was found to be temperature- and gas-dependent. Sensors with improved behaviour with regard to sensor signal and selectivity have been achieved.
Keywords
Dry fabrication , Flame spray pyrolysis , Gas sensors , Multilayer deposition , SnO2
Journal title
Sensors and Actuators B: Chemical
Serial Year
2007
Journal title
Sensors and Actuators B: Chemical
Record number
1437071
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