TY - JOUR
T1 - MOF-doped WO3 nanofibers for the SF6 decomposition products
T2 - The effects of MOF-modification on the sensitive performance and mechanism
AU - Chu, Jifeng
AU - Wang, Qiongyuan
AU - Yang, Aijun
AU - Pan, Jianbin
AU - Yuan, Huan
AU - Wang, Xiaohua
AU - Rong, Mingzhe
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/12/30
Y1 - 2022/12/30
N2 - SF6 decomposition products are of significance to the diagnosis of gas insulated switchgear (GIS) equipment. Amounts of previous literature have employed a series of advanced materials to detect these characteristic products (H2S, SO2, SO2F2 and SOF2). However, the development of the gas-sensitive mechanism is seriously lagging behind the gas-sensitive materials. This work has synthesized the MOF-modification WO3 nanofibers (NFs) via electrospinning, and further investigated its sensitivity toward four gas analytes. With the assistance of in-situ diffuse reflectance infrared Fourier transform (DRIFT) spectra, the sulfites and sulfates sourced from the SO2 adsorption was regarded as the essence of the material poisoning. At the particular bands, the in-situ experiments have indicated the composites performed larger absorbance intensity and better recovery capability than the pristine WO3, which were consistent with the results of gas-sensing experiments. This work provides the guidance for improving the performance of nanomaterials toward SF6 decomposition products by MOF doping.
AB - SF6 decomposition products are of significance to the diagnosis of gas insulated switchgear (GIS) equipment. Amounts of previous literature have employed a series of advanced materials to detect these characteristic products (H2S, SO2, SO2F2 and SOF2). However, the development of the gas-sensitive mechanism is seriously lagging behind the gas-sensitive materials. This work has synthesized the MOF-modification WO3 nanofibers (NFs) via electrospinning, and further investigated its sensitivity toward four gas analytes. With the assistance of in-situ diffuse reflectance infrared Fourier transform (DRIFT) spectra, the sulfites and sulfates sourced from the SO2 adsorption was regarded as the essence of the material poisoning. At the particular bands, the in-situ experiments have indicated the composites performed larger absorbance intensity and better recovery capability than the pristine WO3, which were consistent with the results of gas-sensing experiments. This work provides the guidance for improving the performance of nanomaterials toward SF6 decomposition products by MOF doping.
KW - In-situ DRIFT spectra
KW - MOF enhancement
KW - SF decomposition products
KW - Sensitive mechanism
KW - WO nanofibers
UR - https://www.scopus.com/pages/publications/85138454805
U2 - 10.1016/j.apsusc.2022.154889
DO - 10.1016/j.apsusc.2022.154889
M3 - 文章
AN - SCOPUS:85138454805
SN - 0169-4332
VL - 606
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 154889
ER -