Home // ALLSENSORS 2017, The Second International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article

Study of Propylene Glycol and Dimethylformamide Vapors Sensors Based on MWCNTs/SnO2 Nanocomposites

Authors:
Zaven Adamyan
Artak Sayunts
Vladimir Aroutiounian
Emma Khachaturyan
Arsen Adamyan
Martin Vrnata
Přemysl Fitl
Jan Vlček

Keywords: MWCNTs/SnO2; gas; vapor; sensor; dimethylformamide; propylene glycol

Abstract:
We present results of our research works related to the study of thick-film multiwall carbon nanotube/tin oxide nanocomposite sensors of propylene glycol (PG) and dimethylformamide (DMF) vapors derived using hydrothermal synthesis and sol-gel methods. Investigations of response/recovery characteristics in the 50-300oC operating temperature range reveal that the optimal operating temperature for PG and DMF vapor sensors, taking into account both high response and acceptable response and recovery times, are about 200 and 220oC, respectively. A sensor response dependence on gas concentration in both cases is linear. The minimal propylene glycol and dimethylformamide gas concentrations at which the perceptible signal was registered by us were 13 ppm and 5 ppm, respectively.

Pages: 44 to 49

Copyright: Copyright (c) IARIA, 2017

Publication date: March 19, 2017

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-61208-543-2

Location: Nice, France

Dates: from March 19, 2017 to March 23, 2017