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http://cmuir.cmu.ac.th/jspui/handle/6653943832/53315| Title: | Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
| Authors: | V. Kruefu A. Wisitsoraat S. Phanichphant |
| Authors: | V. Kruefu A. Wisitsoraat S. Phanichphant |
| Keywords: | Chemical Engineering;Chemistry;Engineering;Materials Science;Physics and Astronomy |
| Issue Date: | 1-Oct-2014 |
| Abstract: | Copyright © 2014 American Scientific Publishers All rights reserved. Sensing characteristics of the spin-coated Au/ZnO nanoparticles thick films with different Au concentrations have been studied for various gases, namely, CO, SO2, ethanol and acetone. The influence on a dynamic range of Au concentration on ethanol response (0.005-0.1 vol.%) of thick film sensor elements was studied at the operating temperatures ranging from 300 to 400 °C in the presence of dry air. The optimum Au concentration was found to be 0.5 mol%. 0.5 mol% Au exhibited an optimum ethanol response of 5.0 × 102and a short response time (10 s) for ethanol concentration of 0.1 vol.% at 400 °C. Plausible mechanisms explaining the enhanced ethanol selectivity by thick films of Au/ZnO are discussed. |
| URI: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84907638400&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/53315 |
| ISSN: | 15334899 15334880 |
| Appears in Collections: | CMUL: Journal Articles |
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