WO3 nanofibers (NFs), with diameter of about 150-200 nm, were grown using the electrospinning technique starting from WCl6 as tungsten source. The NFs were deposited onto a patterned substrate, for gas sensing measurements, and on a silicon substrate, for chemical and structural characterizations. The chemical composition of the NFs was determined by the x-ray photoemission spectroscopy, while high spatial resolution soft x-ray photoemission spectroscopy showed a chemical image of the NF. The gas sensing properties of these NFs were checked towards NO2 and CO, showing a good response for NO2 while no effect was observed for CO. (c) 2007 American Institute of Physics.
WO3 nanofibers for gas sensing applications
PASSACANTANDO, MAURIZIO;SANTUCCI, Sandro;LOZZI, Luca;
2007-01-01
Abstract
WO3 nanofibers (NFs), with diameter of about 150-200 nm, were grown using the electrospinning technique starting from WCl6 as tungsten source. The NFs were deposited onto a patterned substrate, for gas sensing measurements, and on a silicon substrate, for chemical and structural characterizations. The chemical composition of the NFs was determined by the x-ray photoemission spectroscopy, while high spatial resolution soft x-ray photoemission spectroscopy showed a chemical image of the NF. The gas sensing properties of these NFs were checked towards NO2 and CO, showing a good response for NO2 while no effect was observed for CO. (c) 2007 American Institute of Physics.Pubblicazioni consigliate
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