Insulation defects and equipment failure often exist in power transformer, and insulating oil in transformer will experience decomposition with a series reaction. By detecting the dissolved gases in insulating oil, the operation status of transformer can be evaluated. In this study, the adsorption and gas sensing of several kinds of typical dissolved gas molecule (H2, C2H2, and CO) on pristine and single Ni atom doped WS2 monolayer (Ni-WS2) was theoretically investigated based on first-principles density functional theory. To discuss the adsorp...
