Comparative analysis of adsorption and gas-sensing performance in metal oxide-functionalized GaN nanotubes for real-time CF3CN detection in GIS high-voltage systems
Fuqi Ma
The eco-friendly gas C4F7N has emerged as a promising alternative to SF6 for online monitoring in gas-insulated switchgear (GIS) high-voltage (HV) electrical systems, but partial discharges-an inherent issue in such environments-cause C4F7N decomposition, generating byproducts like CF3CN. This study employs first-principles calculations to systematically investigate the adsorption and electronic properties of metal oxide-modified GaN nanotubes (GaNNTs) (CuO, ZnO, Ag2O, CrO2) toward CF3CN, analyz