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dc.contributor.authorSukon Phanichphanten_US
dc.contributor.authorChaikarn Liewhiranen_US
dc.contributor.authorKhatcharin Wetchakunen_US
dc.contributor.authorAnurat Wisitsoraaten_US
dc.contributor.authorAdisorn Tuantranonten_US
dc.description.abstractUndoped TiO2and TiO2nanoparticles doped with 1-5 at.% Nb were successfully produced in a single step by flame spray pyrolysis (FSP). The phase and crystallite size were analyzed by XRD. The BET surface area (SSABET) of the nanoparticles was measured by nitrogen adsorption. The trend of SSABET on the doping samples increased and the BET equivalent particle diameter (dBET) (rutile) increased with the higher Nb-doping concentrations while dBET(anatase) remained the same. The morphology and accurate size of the primary particles were further investigated by high-resolution transmission electron microscopy (HRTEM). The crystallite sizes of undoped and Nb-doped TiO2spherical were in the range of 10-20 nm. The sensing films were prepared by spin coating technique. The mixing sample was spin-coated onto the Al2O3substrates interdigitated with Au electrodes. The gas sensing of acetone (25-400 ppm) was studied at operating temperatures ranging from 300-400 °C in dry air, while the gas sensing of ethanol (50-1,000 ppm) was studied at operating temperatures ranging from 250-400 °C in dry air. © 2011 by the authors.en_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectPhysics and Astronomyen_US
dc.titleFlame-made Nb-doped TiO2 ethanol and acetone sensorsen_US
article.volume11en_US Mai Universityen_US National Electronics and Computer Technology Centeren_US
Appears in Collections:CMUL: Journal Articles

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