| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1514362 | Energy Procedia | 2011 | 7 Pages |
Abstract
In this paper, pure PEI and PEI/Starch thin film sensors were fabricated to detect carbon dioxide (CO2). Films were characterized by ultraviolet-visible spectroscopy (UV–Vis). The quartz crystal microbalance sensors (QCM), coated with the two selected films by the spin-coating method, showed good sensitivities to CO2 gas with concentrations in the range (0.1%-0.5%) at room temperature. In addition, the dependence of temperature on the properties of sensors was studied. It was found that the polyethyleneimine (PEI)/Starch nanocomposite thin film sensor exhibited a better CO2-sensing property than that of a pure polyethyleneimine (PEI) thin film sensor.
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