Development of Nano- WO 3 Doped with NiO for Wireless Gas Sensors
WO3 doped with NiO nanopowders with different NiO concentrations were prepared by sol–gel technique. The fabrication of the thin films for gas sensors applications was utilized using thermal vacuum evaporation technique. The morphological structure, crystallinity and optical properties of WO3 and Ni...
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Published in | The Arabian Journal for Science and Engineering. Section B, Engineering Vol. 44; no. 1; pp. 647 - 654 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Heidelberg
Springer Nature B.V
24.01.2019
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Subjects | |
Online Access | Get full text |
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Summary: | WO3 doped with NiO nanopowders with different NiO concentrations were prepared by sol–gel technique. The fabrication of the thin films for gas sensors applications was utilized using thermal vacuum evaporation technique. The morphological structure, crystallinity and optical properties of WO3 and NiO-doped WO3 nanopowders were characterized using scanning electron microscopy, X-ray diffraction and UV–Vis spectrophotometer, respectively. The electrical behaviors of the sensors were determined and measured by the two platinum electrodes sensor’s resistance with different gases at various temperatures. The results show that a great response to CO2 gas was 164% at 5% doping ratio which is applicable for all environmental and industrial fields. GSM module by MAX circuit was applied on gas sensor devices to send a wireless message telling that there is a leakage in the area which the sensor installed. |
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ISSN: | 1319-8025 2191-4281 |
DOI: | 10.1007/s13369-018-3608-1 |