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Tin Oxide-Carbon Nanotube Composite for NO X Sensing

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Abstract:

Tin oxide-single wall carbon nanotube (SWCNT) nano composites are synthesized for gas sensor application. The fabrication includes deposition of porous SWCNTs on thermally oxidized SiO2 substrates followed by rheotaxial growth of Sn and thermal oxidation at 300, 400, 500, and 600 °C in air. The effects of oxidation temperature on morphology, microstructure, and gas sensing properties are investigated for process optimization. The tin monoxide oxidized at 400 °C showed the highest response at the operating temperature of 200 °C. Under the optimized test condition, the composite structure showed better response than both structures of SWCNTs and thin film SnO.

Keywords: CARBON NANOTUBE; COMPOSITE; NO GAS SENSOR; TIN OXIDE

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2012.4656

Publication date: 2012-02-01

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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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