Abstract
In this study ferrocene, chitosan and ferrocene branched chitosan were synthesized to investigate carbon monoxide (CO) sensing properties and adsorption characteristics. The range of 0–2000ppm CO concentrations was used as active gas, high purity nitrogen (N2) 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 N2. The results show that the ferrocene branched chitosan coated sensor has exhibited promising CO sensing property for CO sensor applications at room temperature.
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