Sensors & Transducers Journal
(ISSN 1726- 5479)
Vol. 73, Issue 11, November 2006, pp. 793-798
Palladium Nanoparticle Hydrogen Sensor
Received: 19 May 2006 /Accepted: 30 November 2006 /Published: 4 December 2006
Abstract: An innovative hydrogen sensor based on palladium (Pd) nanoparticle networks is described in the article. Made by Applied Nanotech Inc. sensor has a fast response time, in the range of seconds, which is increased at 80 °C due to higher hydrogen diffusion rates into the palladium lattice. The low detection limit of the sensor is 10 ppm of H2, and the high limit is 40,000 ppm. This is 100% of a lowest flammability level of hydrogen. This range of sensitivities complies with the requirements that one would expect for a reliable hydrogen sensor.
Keywords: Hydrogen sensor; Palladium nanoparticle networks; Sensor controller
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