Platinum-Doped Anatase (101) Surface as Promising Gas-Sensor Materials for HF, CS₂, and COF₂: A Density Functional...

In order to find promising sensor materials for HF, CS₂, and COF₂ detection to realize the online internal insulation defect diagnosis of a SF₆ gas electrical device, the gas sensing property, binding energy, adsorption distance, charge transfer, and density of states distribution, of Pt-doped anatase TiO₂ (101) surfaces on HF, CS₂, and COF₂ gas molecules was calculated and analyzed in this paper based on the density functional theory. The work suggested that the Pt-TiO₂ surface has a nice gas sensing upon CS₂ and COF₂ because of the increase of the conductivity of the Pt-TiO₂ surface and the suitable adsorption parameter after CS₂ and COF₂ 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-TiO₂ as a gas sensor material for HF, CS₂, and COF₂ detection.