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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/27552
Title: Au-doped zinc oxide nanostructure sensors for detection and discrimination of volatile organic compounds
Authors: C. Wongchoosuk
S. Choopun
A. Tuantranont
T. Kerdcharoen
Mahidol University
Chiang Mai University
National Electronic and Computer Technology Center
Keywords: Engineering;Materials Science;Physics and Astronomy
Issue Date: 1-Sep-2009
Citation: Materials Research Innovations. Vol.13, No.3 (2009), 185-188
Abstract: Pure and 10% w/w Au-doped zinc oxide (ZnO) nanostructure sensors were produced and used as sensing devices in a portable electronic nose (E-nose). The nanosensors were prepared using thermal oxidation technique with sintering temperature at 700°C under oxygen atmosphere at a flow rate of 500 mL min-1. The sensors were demonstrated to be sensitive to various volatile organic compounds (VOCs), especially ethanol vapour. The E-nose even with only two sensors was efficient to discriminate a number of selected VOCs. The Au-doped sensor shows a significant improvement of sensitivity. The portable E-nose can detect the difference between alcohol beverages and alcohol solutions and can distinguish the difference of white and red wines having the same percentage of alcohol. © W. S. Maney & Son Ltd. 2009.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=70149097149&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/27552
ISSN: 14328917
Appears in Collections:Scopus 2006-2010

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