通过电沉积法制备出Fe纳米线,再将纳米线转化成空心的铁氧化物半导体纳米花,其大小均匀,粒径250 nm,具有气敏响应性能。在纳米花上掺杂Au纳米颗粒,气敏响应性能显著提高,具有较高的选择性、稳定性和灵敏度,是较理想的气敏传感器材料。 Fe nanowires were prepared by electrodeposition, and the nanowires were transformed into hollow iron oxide semiconductor nanoflowers. The nanowires were uniform in size and had a particle size of 250 nm with gas-sensing response. Adopting Au nanoparticles on the nano-flower, the gas-sensing response is obviously improved, which has high selectivity, stability and sensitivity and is an ideal gas sensor material.