Adsorption and Sensing Performances of a TiO 2 Cluster-Doped Graphene Monolayer toward SOF 2 and SO 2 F 2 .

Due to the high surface activity of metal atoms, it is difficult for doped metals to maintain long-term stability. Compared with other metal oxides, TiO 2 graphene sensors have a higher sensing response and a larger specific surface area. However, there is currently no literature comparing and analyzing the effect of graphene-doped TiO 2 on the adsorption performance of SF 6 decomposition components. Therefore, this article investigated the adsorption performance of SF 6 decomposition products: the distribution of SOF 2 and SO 2 F 2 on n TiO 2 ( n = 1,2,3)-doped graphene. In order to explore the interaction mechanism between gas molecules and these modified systems, their E ads , charge transfer, DOS, and PDOS were systematically studied. The doping of n TiO 2 significantly improves the adsorption ability of graphene to gas molecules, discovers and enriches the online monitoring methods of GIS, and improves the engineering application value of GIS.