In situ DRIFT study of hydrogen and CO adsorption on Pt/SiO2 model sensors
Paper in proceeding, 2007
The sensing mechanism towards carbon monoxide of Metal Insulator Silicon Carbide (MISiC) Field Effect devices used as sensors, has been studied by in situ FTIR spectroscopy in diffuse reflectance mode (DRIFT). The infrared studies were performed using a model sensor, where adsorption of CO in presence of oxygen and hydrogen has been studied. The results show that the CO adsorption on Pt varies with varying oxygen concentration, CO concentration, hydrogen exposure and temperature. When correlating the DRIFT spectroscopy with sensor signal measurements, the CO response or MISiC field effect devices appears to be connected to the CO coverage of the sensor surface.
¨Carbon monoxide
Sensor
Oxidation
Platinum
Author
Elin Becker
Competence Centre for Catalysis (KCK)
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
Magnus Skoglundh
Competence Centre for Catalysis (KCK)
Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry
Mike Andersson
Linköping University
Anita Lloyd Spetz
Linköping University
2007 IEEE Sensors
1930-0395 (ISSN)
Vol. 1-3 1028-1031978-1-4244-1261-7 (ISBN)
Driving Forces
Sustainable development
Areas of Advance
Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)
Transport
Energy
Materials Science
Subject Categories
Physical Chemistry
Physical Sciences
Atom and Molecular Physics and Optics
DOI
10.1109/ICSENS.2007.4388580
ISBN
978-1-4244-1261-7