Abstract
AbstractThis paper reports for the first time the facile synthesis of hollow F‐doped SnO2 nanofibers by solution blow spinning (SBS) and their ethanol sensing performance. The as‐prepared nanofibers were characterized using scanning electron microscopy (SEM), x‐ray diffraction (XRD), Brunauer–Emmett–Teller (BET), Fourier‐transform infrared spectroscopy (FTIR), and electrochemical impedance spectroscopy (EIS). The gas sensing behavior of the F‐doped SnO2 nanofibers was investigated using a homemade test chamber. The results revealed the preparation of mesoporous F‐doped SnO2 hollow fibers with a diameter ranging from 207 ± 43 to 355 ± 41 nm. The combination of nanocrystalline hollow structure and F doping led to fast high‐responsive ethanol sensors at room temperature (RT) with good reproducibility and long‐term stability. These results indicate that F‐doped SnO2 hollow nanofibers are good candidates for building practical low‐temperature ethanol gas sensors.
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