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International Letters of Chemistry, Physics and Astronomy
Volume 60

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Study of the Structural, Morphological and Electrical Properties of WO3 Nanopowders which Use as Gas Sensors

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Abstract:

nanopowders of tungsten oxide (WO3) have been prepared by high energy ball-milling for various spans of mill time (1-18 h). The crystal structure, surface morphology of the prepared WO3 nanopowder were characterized by X-ray diffraction and scanning electron microscope. Thick films of WO3 nanopowders were prepared by printing painting chemical method to use them as gas sensors for methanol vapor at different operating temperatures, Their I-V characteristics were studied by using devices KEITHLEY 237. The effect of the milling time on the crystal structure, surface morphology, and electrical properties are reported.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 60)
Pages:
107-112
DOI:
10.18052/www.scipress.com/ILCPA.60.107
Citation:
M. Ali and M. Hbous, "Study of the Structural, Morphological and Electrical Properties of WO3 Nanopowders which Use as Gas Sensors", International Letters of Chemistry, Physics and Astronomy, Vol. 60, pp. 107-112, 2015
Online since:
Sep 2015
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