Room Temperature Hydrogen Detection Using 1-D Nanostructured Tin Oxide Sensor

Authors: Deshpande, S.; Karakoti, A.; Londe, G.; Cho, H.J.; Seal, S.

Source: Journal of Nanoscience and Nanotechnology, Volume 7, Number 9, September 2007 , pp. 3354-3357(4)

Publisher: American Scientific Publishers

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Abstract:

Room temperature sensing of hydrogen using randomly oriented tin oxide nanowires has been demonstrated successfully. The role of surface functionalization of nanowires with platinum catalyst in rapid hydrogen detection is also studied. These nanowires were successfully incorporated into a micro-electro-mechanical (MEMS) device. The device can successfully detect hydrogen gas (as low as 500 ppm) with response time as low as 10 sec. Effect of aspect ratio of the nanowires on diffusion of hydrogen molecules in the tin oxide nanowires is elucidated in detail.

Keywords: TIN OXIDE NANOWIRES; MEMS; HYDROGEN SENSOR; ROOM TEMPERATURE DETECTION

Document Type: Short communication

DOI: http://dx.doi.org/10.1166/jnn.2007.872

Publication date: 2007-09-01

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Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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