NASA NTRS · 20080008678
Surface acoustic wave hydrogen sensor
Abstract
The present invention provides a delay line SAW device fabricated on a lithium niobate substrate and coated with a bilayer of nanocrystalline or other nanomaterials such as nanoparticles or nanowires of palladiumn and metal free pthalocyanine which will respond to hydrogen gas in near real time, at low (room) temperature, without being affected by CO, O.sub.2, CH.sub.4 and other gases, in air ambient or controlled ambient, providing sensitivity to low ppm levels.
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Bhethanabotla, Venkat R., Bhansali, Shekhar. 2006-05-23. Surface acoustic wave hydrogen sensor. https://ntrs.nasa.gov/citations/20080008678
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