Gold-Loaded Tungsten Oxide Sensor for Detection of Ammonia in Air
- 1 April 1992
- journal article
- research article
- Published by Oxford University Press (OUP) in Chemistry Letters
- Vol. 21 (4), 639-642
- https://doi.org/10.1246/cl.1992.639
Abstract
Among various noble-metal loaded WO3 sensor elements, the one loaded with Au showed the best NH3 sensing performance in sensitivity and response rate at 450 °C. It could detect NH3 in air over a wide concentration range from 5 ppb to 50 ppm. The optimum Au loading was 0.8 wt%.Keywords
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