Sensing Mechanism of Pt-HfSe2 for Detecting SF6 Decomposition Components

doi:10.3969/j.issn.1008-0198.2024.03.007

Abstract

Abstract: :By detecting SF₆ decomposition components, the operating state of the equipment can be effectively evaluated, and the safe and stable operation of the equipment can be guaranteed. Based on the first principles, Pt-HfSe₂ is proposed to detect SO₂and SOF₂, and the adsorption and sensing mechanism of PT-HFSE₂ on the two gas components is studied, so as to explore its application potential as a resistive gas sensor to evaluate the operating status of SF₆electrical equipment. The results show that the adsorption performance of Pt-HfSe₂ on SO₂ is stronger than that of SOF₂, and the two gases have better desorption performance on the surface of Pt-HfSe₂, which can ensure the reuse of the sensor material. Pt-HfSe₂ has the conditions to be developed as new SO₂ and SOF₂ gas sensors, which can be used to evaluate the operating status of SF₆ electrical equipment, providing theoretical support for the research of HFSE₂-based gas sensors, and providing a new idea for the application of new nano-sensor components to the fault diagnosis of power equipment.

Key words: Pt-HfSe₂, first-principles theory, gas sensing mechanism, SF₆decomposed species

CLC Number:

TM561.3

HU Xiongxiong, ZOU Lingwei, ZHANG Xiaolin, CUI Hao. Sensing Mechanism of Pt-HfSe₂ for Detecting SF₆ Decomposition Components[J]. Hunan Electric Power, 2024, 44(3): 48-54.

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Sensing Mechanism of Pt-HfSe₂ for Detecting SF₆ Decomposition Components

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