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Detection of HC in exhaust gases by an array of MISiC sensors
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Volvo TU, Applied Physics, 6130, Chalmers Teknikpark, SE-412 88 Göteborg, Sweden.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
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2001 (English)In: Sensors and actuators. B, Chemical, ISSN 0925-4005, E-ISSN 1873-3077, Vol. 77, no 1-2, 177-185 p.Article in journal (Refereed) Published
Abstract [en]

Future legislations for car emissions make direct measurements in exhaust gases of hydrocarbon (HC) as well as CO and NOx interesting. Robust sensors that can stand the high temperature and rough environment in the exhaust gases are needed. Silicon carbide has the advantage of being a chemically very inert material, which, due to its high band gap, is a semiconductor even at temperatures around 800°C. Catalytic metal insulator silicon carbide Schottky diode sensors respond to gases like H2, HC, NOx in exhaust gases. The choice of catalytic metal, structure of the metal, and the operation temperature determines the response pattern to different gases. Here we will demonstrate that an array of different MISiC sensors to some extent predicts the HC concentration in gasoline exhaust gases. Chemometric methods are used for the evaluation of the signals. © 2001 Elsevier Science B.V.

Place, publisher, year, edition, pages
2001. Vol. 77, no 1-2, 177-185 p.
Keyword [en]
Exhaust gases, Field effect, Gas sensors, Hydrocarbons, Silicon carbide
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47351DOI: 10.1016/S0925-4005(01)00690-6OAI: oai:DiVA.org:liu-47351DiVA: diva2:268247
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Widén, BjörnEkedahl, Lars-GunnarLundström, IngemarLloyd-Spets, Anita

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Sensors and actuators. B, Chemical
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