Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films
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, SO 2 , ethanol and acetone. The influence on a dynamic range of Au concen...
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th-cmuir.6653943832-449562018-01-24T06:02:00Z Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films V. Kruefu A. Wisitsoraat S. Phanichphant 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, SO 2 , 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 × 10 2 and 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. 2018-01-24T06:02:00Z 2018-01-24T06:02:00Z 2014-10-01 Journal 15334899 15334880 2-s2.0-84907638400 10.1166/jnn.2014.9430 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84907638400&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/44956 |
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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, SO 2 , 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 × 10 2 and 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. |
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V. Kruefu A. Wisitsoraat S. Phanichphant |
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V. Kruefu A. Wisitsoraat S. Phanichphant Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
author_facet |
V. Kruefu A. Wisitsoraat S. Phanichphant |
author_sort |
V. Kruefu |
title |
Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
title_short |
Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
title_full |
Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
title_fullStr |
Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
title_full_unstemmed |
Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films |
title_sort |
enhanced ethanol selectivity of flame-spray-made au/zno thick films |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84907638400&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/44956 |
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