Determination of Gas Sensing Properties of SF6 Decomposition Components by Pt Modified Graphene

Detecting SF6 decomposed species by chemical gas sensors has been accepted as a workable method to estimate the operation status of insulation devices in electrical engineering. Functioned by transition metals, graphene would be provided with enhanced sensitivity and response towards gas molecules due to the high catalytic activity of metal atoms for gas interaction, which has drawn considerable attentions in recent years for gas sensor use. The paper is to study the gas sensitive characteristics of the characteristic components of sulfur hexafluoride detected by platinum modified graphene. The main components of the sulfur hexafluoride gas insulation equipment are the characteristic components of SO2F2 and SOF2. The use of self-produced resistive gas-sensitive materials - intrinsic graphene and modified Pg with different Pt mass fractions. A variety of frontier characterization methods were used to characterize the microstructure and structure of nanomaterials. A variety of Pt-modified graphene sensors were prepared by a chemical reduction method. Improve the gas sensitive experimental platform independently designed by this research group to achieve a controllable operating temperature and a variable concentration of the gas to be measured. Gas sensitivity tests were performed to investigate the gas sensitivity of Pt-modified graphene sensors for SO2F2 and SOF2, including temperature characteristics, sensitivity, selectivity, and recovery stability.