Sensors & Transducers Journal

    (ISSN 1726- 5479)

Vol. 73, Issue 11, November 2006, pp. 793-798

Palladium Nanoparticle Hydrogen Sensor

I. Pavlovsky, P. Soundarrajan, Z. Yaniv

Applied Nanotech Inc., Tel.: (512) 339 5020 x103, USA

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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