| 초록 |
The need to detect CO2 gas is increasing with the increase in environmental concerns. Infrared absorption detectors, gas chromatography (GC) and mass spectrometers (MS) are mainly used for sensing carbon dioxide gas until now. However these equipments require a high maintenance costs. Because of a CO2 gas chemical stability only few materials like barium titanate (BaTiO3), tin oxide (SnO2) and barium stannate (BaSnO3) can sense moderate signal through the chemical or mechanical reaction. Among these materials, barium stannate is the most promising material to detect CO2. It can be applied in a wide range of CO2 concentration than existing materials. We report the fabrication of a barium stannate nano-wire through an electrospinning method. Introducing nano scale and nano wire, we can obtain a high specific surface area. In addition to that it can be mixed with another dopants to enhance a sensing signal and selectivity. The characterization of the sensor was done by XRD, SEM, and TGA. |
