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Sensors (Basel)

Title:		The Impact of Sepiolite on Sensor Parameters during the Detection of Low Concentrations of Alcohols
Author(s):		Suchorska-Wozniak P; Rac O; Fiedot M; Teterycz H;
Address:		"Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, Janiszewskiego 11/17, Wroclaw 50-372, Poland. patrycja.wozniak@pwr.edu.pl. Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, Janiszewskiego 11/17, Wroclaw 50-372, Poland. olga.rac@pwr.edu.pl. Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, Janiszewskiego 11/17, Wroclaw 50-372, Poland. marta.fiedot@pwr.edu.pl. Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, Janiszewskiego 11/17, Wroclaw 50-372, Poland. helena.teterycz@pwr.edu.pl"
Journal Title:		Sensors (Basel)
Year:		2016
Volume:		20161109
Issue:		11
Page Number:		-
DOI:		10.3390/s16111881
ISSN/ISBN:		1424-8220 (Electronic) 1424-8220 (Linking)
Abstract:		"The article presents the results of the detection of low-concentration C1-C4 alcohols using a planar sensor, in which a sepiolite filter was applied next to the gas-sensitive layer based on tin dioxide. The sepiolite layer is composed of tubes that have a length of several microns, and the diameter of the single tube ranges from several to tens of nanometers. The sepiolite layer itself demonstrated no chemical activity in the presence of volatile organic compounds (VOC), and the passive filter made of this material did not modify the chemical composition of the gaseous atmosphere diffusing to the gas-sensitive layer. The test results revealed that the structural remodelling of the sepiolite that occurs under the influence of temperature, as well as the effect of the filter (a compound with ionic bonds) with molecules of water, has a significant impact on the improvement of the sensitivity of the sensor in relation to volatile organic compounds when compared to the sensor without a filter"
Keywords:		alcohols gas detection nanomaterial resistive gas sensors sepiolite filter;
Notes:		"PubMed-not-MEDLINESuchorska-Wozniak, Patrycja Rac, Olga Fiedot, Marta Teterycz, Helena eng Switzerland 2016/11/12 Sensors (Basel). 2016 Nov 9; 16(11):1881. doi: 10.3390/s16111881"