Polypyrrole based gas sensor for ammonia detection

The nature of polypyrrole response to toxic gases does not allow using the sensor in a conventional way. The main aim of this study is to acquire the information about the concentration using different approaches: a linear approximation, a non-linear approximation and a tangent method. In this paper...

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Published inIOP conference series. Materials Science and Engineering Vol. 104; no. 1; pp. 12028 - 12035
Main Authors Dunst, K J, Cysewska, K, Kalinowski, P, Jasi ski, P
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2016
Subjects
Ammonia
Approximation
Electrodes
Flow velocity
Gas sensors
Mathematical analysis
Polypyrroles
Room temperature
Sensors
Tangents
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Summary:The nature of polypyrrole response to toxic gases does not allow using the sensor in a conventional way. The main aim of this study is to acquire the information about the concentration using different approaches: a linear approximation, a non-linear approximation and a tangent method. In this paper a two-steps procedure for sensor response measurements has been utilized. Polypyrrole films were electrochemically synthesized on the interdigitated electrodes. Gas sensing measurements of polypyrrole based sensor were carried out at room temperature. The influence of the flow rate on the sensing performance to NH3 were investigated. The preliminary studies of aging of the sensor were also explored.
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/104/1/012028