Please use this identifier to cite or link to this item:
Title: Enhanced ethanol selectivity of flame-spray-made Au/ZnO Thick Films
Authors: V. Kruefu
A. Wisitsoraat
S. Phanichphant
Keywords: Chemical 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.
ISSN: 15334899
Appears in Collections:CMUL: Journal Articles

Files in This Item:
There are no files associated with this item.

Items in CMUIR are protected by copyright, with all rights reserved, unless otherwise indicated.