Room temperature monitoring of SF6 decomposition byproduct SO2F2 based on TiO2/NiSO4 composite nanofibers

Published on Apr 13, 2021in Nanotechnology3.551
· DOI :10.1088/1361-6528/ABF776
Li Li2
Estimated H-index: 2
(EPRI: Electric Power Research Institute),
Salah Ud Din4
Estimated H-index: 4
(ZJU: Zhejiang University)
+ 4 AuthorsLiping Zhu72
Estimated H-index: 72
(ZJU: Zhejiang University)
Sulfuryl fluoride (SO2F2) is one of the ideal decomposition components of sulfur hexafluoride (SF6), which has been widely used as insulating and arc-quenching medium in gas-insulated switchgear (GIS) power equipment. To detect SF6 decomposition component at room temperature, use of SO2F2 still poses challenges. In this work, we have successfully prepared TiO2 nanofibers and Nickle sulfate (NiSO4 NPs) via facile electrospun and hydrothermal methods, followed by calcination process to improve sensing performance. The Ni-decoration on the outer surface of nanofibers could maximize the sensor response of 100 ppm SO2F2 up to 189% at room temperature, which shows that composite-based sensor is 2.5 times superior than pure sensors. Thus, the approach adopted for this novel composite based material is promising for the fabrication of superior gas sensor for SF6 decomposition.
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