Boron Nitride Nanotubes-Based Gas Sensors of SF\(_6\) Decomposed Components for Analyzing the Running Status of High-Voltage Insulated Equipment

Authors

  • Chenaf Tahar Laboratoire d'étude et développement des matériaux diélectriques et semi-conducteurs, Université Amar Telidji de Laghouat Laghouat
  • Zegnini Boubakeur Laboratoire d'étude et développement des matériaux diélectriques et semi-conducteurs, Université Amar Telidji de Laghouat Laghouat
  • Seghier Tahar Laboratoire d'étude et développement des matériaux diélectriques et semi-conducteurs, Université Amar Telidji de Laghouat Laghouat
  • Benghia Ali Laboratoire de physique des matériaux, Amar Telidji University of Laghouat, BP 37G, Laghouat 03000

DOI:

https://doi.org/10.26713/jamcnp.v8i1.1549

Keywords:

Dielectric material, Gas SF\({}_{6}\), Decomposition products, BN nanotube, Molecular dynamics, Adsorption, Gap Energy, Density Functional Theory (DFT)

Abstract

Gas-insulated equipment using sulphur hexafluoride (SF\(_6\)) as insulation and arc extinguishing media such as Gas Insulated Station (GIS) has been widely used in the field of high voltage power systems. However, the internal insulation defect existed in GIS would inevitably lead to Partial Discharge (PD), and cause the composition of SF\({}_{6}\) to HF, SF\({}_{4}\), SOF\({}_{2}\), SO\({}_{2}\)F\({}_{2}\) and SO\({}_{2}\) and other characteristic component gases. The decomposition phenomenon would greatly reduce the insulation performance of SF\({}_{6}\) insulated equipment, and lead to insulation faults and power failure. Many sensing nonmaterial's such as carbon nanotube and graphene, metal oxides such as SnO\({}_{2}\) TiO\({}_{2}\), and ZnO were explored as chemical gas sensors to detect SF\({}_{6}\) decomposed species with rapid response, high sensitivity and selectivity, in order to guarantee the operation status of SF\({}_{6}\) insulation equipments. In this paper, we attempt to comprehensively understand the adsorption and sensing property of BNNT to SO\({}_{2}\), SOF\({}_{2}\) and SO\({}_{2}\)F\({}_{2}\) were investigated based on the DFT method to explore its potential as a chemical gas sensor. Our theoretical simulation results show that BNNT could be a promising sensor for sensitive detection which would be beneficial for evaluating the running status of SF\(_6\) high voltage insulated equipments. 

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References

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Published

2021-04-30
CITATION

How to Cite

Tahar, C., Boubakeur, Z., Tahar, S., & Ali, B. (2021). Boron Nitride Nanotubes-Based Gas Sensors of SF\(_6\) Decomposed Components for Analyzing the Running Status of High-Voltage Insulated Equipment. Journal of Atomic, Molecular, Condensed Matter and Nano Physics, 8(1), 71–81. https://doi.org/10.26713/jamcnp.v8i1.1549

Issue

Vol. 8 No. 1 (2021)

Section

Research Article

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