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Ethanol Gas Sensing Properties of In2O3 Nanowires Coated with Co3O4 Nanoparticles
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 Title & Authors
Ethanol Gas Sensing Properties of In2O3 Nanowires Coated with Co3O4 Nanoparticles
Park, Sunghoon; Kang, Wooseung;
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nanowires were coated with nanoparticles to investigate the improvement of ethanol gas sensing performance compared with as-synthesized nanowires. Scanning electron microscopy showed that the nanowires synthesized by VLS mechanism had diameters and lengths of approximately 50-100 nm and a few micrometers, respectively. nanoparticles produced by hydrothermal method was in the size range of a few to a few tens nm. As-synthesized and nanoparticles coated nanowires sensors exhibited responses of 1.96% and 4.57%, respectively for the ethanol gas concentration of 200 ppm at . The underlying mechanism for the improved responses of nanoparticles coated nanowires sensors is discussed.
nanowires; nanoparticles;Ethanol;Gas sensor;
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