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Proceedings Paper

Chemical sensor systems for environmental and emission control
Author(s): Anita Lloyd Spetz; Zhafira Darmastuti; Christian Bur; Joni Huotari; Robert Bjorklund; Niclas Lindqvist; Jyrki Lappalainen; Heli Jantunen; Andreas Schütze; Mike Andersson
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Paper Abstract

Focusing on environment and health aspects, the importance of monitoring and controlling dangerous gases and particulate matter increases. For this purpose we present a new version of silicon carbide based gas sensors with improved properties and suitable for high temperature and harsh environments such as power plants or car exhausts. Development of sulfur dioxide sensors for a power plant application is described as well as sensors for detection of ammonia in connection with the SCR process where urea is converted to ammonia, which reduces nitric oxide components in the exhausts. We also describe progress on nanoparticle detection, especially related to detection of the content of adsorbed particles through heating and detection of emitted molecules by a sensor array. Some results are also presented from impedance spectroscopy for detection of the concentration of nanoparticles but with the potential to reveal more details about the particles such as shape and kind of particles.

Paper Details

Date Published: 29 May 2013
PDF: 11 pages
Proc. SPIE 8725, Micro- and Nanotechnology Sensors, Systems, and Applications V, 87250I (29 May 2013); doi: 10.1117/12.2016795
Show Author Affiliations
Anita Lloyd Spetz, Linköping Univ. (Sweden)
Univ. of Oulu (Finland)
Zhafira Darmastuti, Linköping Univ. (Sweden)
Christian Bur, Linköping Univ. (Sweden)
Univ. des Saarlandes (Germany)
Joni Huotari, Univ. of Oulu (Finland)
Robert Bjorklund, Linköping Univ. (Sweden)
Niclas Lindqvist, Alstom Power AB (Sweden)
Jyrki Lappalainen, Univ. of Oulu (Finland)
Heli Jantunen, Univ. of Oulu (Finland)
Andreas Schütze, Univ. des Saarlandes (Germany)
Mike Andersson, Linköping Univ. (Sweden)
Univ. of Oulu (Finland)

Published in SPIE Proceedings Vol. 8725:
Micro- and Nanotechnology Sensors, Systems, and Applications V
Thomas George; M. Saif Islam; Achyut K. Dutta, Editor(s)

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