Synthesis and high gas sensitivity of tin oxide nanotubes

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Journal Article
Sensors and Actuators, B: Chemical, 2008, 131 (1), pp. 313 - 317
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Semiconductor tin oxide (SnO2) nanotubes have been synthesised in bulk quantities using a sol-gel template (AAO membrane) synthetic technique. The morphology and crystal structure of SnO2 nanotubes were characterised by a field emission scanning electron microscope (FESEM) and a transmission electron microscope (TEM). The as-prepared SnO2 nanotubes are polycrystalline with an outer diameter of 200 nm, an inner diameter of about 150 nm and a length extending to tens of micrometers. SnO2 nanotube sensors exhibited high sensitivity towards ethanol gas. © 2007 Elsevier B.V. All rights reserved.
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