| 초록 |
The Fe2O3/Carbon hybrid nanoparticles (NPs) were fabricated by using dual-nozzle electrospray, heat stirring and carbonization. According to the increased diameter of polypyrrole (PPy) NPs as core parts, the size of hybrid NPs also increased gradually. Furthermore, the Brunauer-Emmett-Teller (BET) surface area was decreased, exponentially. This is because the additional pore in carbonization steps. These synthesized hybrid NPs were applied to detect the NO2 gas at room temperature. The minimum detectable level (MDL) of hybrid NPs was as low as 1 ppm, which is higher than that for a chemical sensor based on hybrid materials. |
