Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/50793
Title: Hydrogen sensors based on zinc oxide nanoparticles
Authors: Thanittha Samerjai
Chaikarn Liewhiran
Anurat Wisitsoraat
Sukon Phanichphant
Keywords: Engineering
Issue Date: 29-Nov-2010
Abstract: Pure ZnO, pure MgO and 5 wt%MgO/ZnO nanocomposites were produced by flame spray pyrolysis (FSP) in a single step using zinc naphthenate and magnesium acetate tetrahydrate as Zn and Mg precursors. The particle properties were analyzed by XRD, BET and TEM analyses. The sensing films were prepared by mixing the nanoparticles into an organic paste composed of ethyl cellulose and terpineol as a vehicle binder and solvent, respectively. The resulting paste was spin-coated on Al2O3 substrates interdigitated Au electrodes. The gas sensing of H2 concentration ranging from 0.5-1 vol% was studied at 300oC in dry air. The 5 wt% MgO/ZnO nanocomposites film showed higher sensitivity. The sensitivity increased and the response time decreased with increasing H2 concentrations. ©2010 IEEE.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=78649305397&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50793
Appears in Collections:CMUL: Journal Articles

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