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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Main Authors: V. Kruefu, A. Wisitsoraat, S. Phanichphant
Format: Journal
Published: 2018
Online Access: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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Institution: Chiang Mai University
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spelling 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
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description 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.
format Journal
author V. Kruefu
A. Wisitsoraat
S. Phanichphant
spellingShingle 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
publishDate 2018
url 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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