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Facile synthesis of hollow F‐doped SnO 2 nanofibers and their efficiency in ethanol sensing
Author(s) -
Nascimento Emanuel P.,
Firmino Hellen C. T.,
Santos Adillys M. C.,
Sales Herbet B.,
Silva Vinícius D.,
Macedo Daniel A.,
Neves Gelmires A.,
Medeiros Eliton S.,
Menezes Romualdo R.
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17580
Subject(s) - nanofiber , materials science , nanocrystalline material , scanning electron microscope , fourier transform infrared spectroscopy , mesoporous material , doping , dielectric spectroscopy , chemical engineering , nanotechnology , analytical chemistry (journal) , electrochemistry , optoelectronics , composite material , electrode , chemistry , catalysis , organic chemistry , engineering
This paper reports for the first time the facile synthesis of hollow F‐doped SnO 2 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 SnO 2 nanofibers was investigated using a homemade test chamber. The results revealed the preparation of mesoporous F‐doped SnO 2 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 SnO 2 hollow nanofibers are good candidates for building practical low‐temperature ethanol gas sensors.