期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 104, 期 3, 页码 1297-1308出版社
WILEY
DOI: 10.1111/jace.17580
关键词
ethanol sensor; F‐ doped SnO2; hollow nanofibers; solution blow spinning
资金
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brazil [001]
- National Council for Scientific and Technological Development [308822/2018-8, 420004/2018-1]
This paper presents the facile synthesis of hollow F-doped SnO2 nanofibers using SBS and their ethanol sensing performance for the first time. The as-prepared nanofibers, characterized by SEM, XRD, BET, FTIR, and EIS, exhibited mesoporous structure and showed fast high-responsive ethanol sensing behavior at room temperature due to the combination of nanocrystalline hollow structure and F doping. These results suggest that F-doped SnO2 hollow nanofibers are promising for practical low-temperature ethanol gas sensors.
This 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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