Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 140, Issue 2, Pages 557-562Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2009.04.051
Keywords
Trimethylamine; Ammonia; Tungsten oxide; Sensor response
Funding
- Spanish Ministry of Education and Science
- CROMINA [TEC2004-06854-C03-01/MIC]
- ISIS [TEC2007-67962-C04-04/MIC]
- Juan de la Cierva
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Chromium-doped mesoporous tungsten trioxide - with KIT-6 structure - was prepared through a chemical route. The resulting material was deposited on a micromechanically fabricated hot-plate and tested as a sensor for ammonia and trimethylamine in the temperature range of 200-500 degrees C. Maximum response was reached at 350 and 450 degrees C for ammonia and TMA, respectively. It was also found that the sensor shows a non-linear cross-sensitivity to the gases. (C) 2009 Published by Elsevier B.V.
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