Takács, Máté and Dücső, Csaba and Lábadi, Zoltán and Csikósné Pap, Andrea Edit (2014) Effect of hexagonal WO3 morphology on NH3 sensing. PROCEDIA ENGINEERING, 87. pp. 1011-1014. ISSN 1877-7058
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Abstract
Tungsten oxide nano - powders were prepared by acidic precipitation from so dium tungstate solution. The alternative processes of the applied hydrothermal method resulted in different structure and morphology of hexagonal WO 3 nano - crystals. Micro - hotplates wi th gold electrodes on top to measure sensing layer conductivity were fabricated. WO 3 layers of the two morphologies were depos ited using capillary dropping technique. Sensor responses were measured up to 22 0 °C operation temperature for NH 3 diluted in synthetic air in the 10 - 100 ppm range. Test results are compared in terms of conductivity, sensitivity and response time.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science / természettudomány > QC Physics / fizika T Technology / alkalmazott, műszaki tudományok > TA Engineering (General). Civil engineering (General) / általános mérnöki tudományok |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 30 Dec 2016 10:19 |
| Last Modified: | 30 Dec 2016 10:19 |
| URI: | http://real.mtak.hu/id/eprint/44020 |
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