Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 241, Issue -, Pages 308-313Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.08.175
Keywords
Ferrocene; Chitosan; CO gas sensing; Gas sorption; Quartz crystal microbalance
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In this study ferrocene, chitosan and ferrocene branched chitosan were synthesized to investigate carbon monoxide (CO) sensing properties and adsorption characteristics. The range of 0-2000 ppm CO concentrations was used as active gas, high purity nitrogen (N-2) and air were used as cleaning gases for desorption process. Sorption data were collected by quartz crystal microbalance (QCM) technique. A sensitive film production on QCM was achieved via drop-casting method. Langmuir model was applied to clarify CO adsorption and the desorption kinetics of ferrocene, chitosan and ferrocene branched chitosan with respect to reference N-2. The results show that the ferrocene branched chitosan coated sensor has exhibited promising CO sensing property for CO sensor applications at room temperature. (C) 2016 Published by Elsevier B.V.
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