Platinum-Doped Anatase (101) Surface as Promising Gas-Sensor Materials for HF, CS(2), and COF(2): A Density Functional Theory Study

[Image: see text] In order to find promising sensor materials for HF, CS(2), and COF(2) detection to realize the online internal insulation defect diagnosis of a SF(6) gas electrical device, the gas sensing property, binding energy, adsorption distance, charge transfer, and density of states distribution, of Pt-doped anatase TiO(2) (101) surfaces on HF, CS(2), and COF(2) gas molecules was calculated and analyzed in this paper based on the density functional theory. The work suggested that the Pt–TiO(2) surface has a nice gas sensing upon CS(2) and COF(2) because of the increase of the conductivity of the Pt–TiO(2) surface and the suitable adsorption parameter after CS(2) and COF(2) adsorbing on it. However, this material is not suitable as a gas sensor for HF gas. All of the works provide theoretical adsorption information of Pt–TiO(2) as a gas sensor material for HF, CS(2), and COF(2) detection.