Study on Sensitivity Characteristic of Decomposed Gas of MoS<sub>2</sub> Sensor with Insulating Medium Feature

LI Liangshu; WAN Kanghong; WANG Qiongyuan; YANG Aijun; YUAN Huan; WANG Xiaohua; RONG Mingzhe

doi:10.13296/j.1001-1609.hva.2021.10.005

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Study on Sensitivity Characteristic of Decomposed Gas of MoS₂ Sensor with Insulating Medium Feature

更新时间：2025-04-26

- Study on Sensitivity Characteristic of Decomposed Gas of MoS₂ Sensor with Insulating Medium Feature
- High VoltageApparatus Vol. 57, Issue 10, Pages: 36-43(2021)
- 作者机构：
  
  1. 国网陕西省电力公司
  2. 西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.10.005
  CLC： TQ136.12;TM21;TP212
- Published：2021
- 稿件说明：
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LI Liangshu, WAN Kanghong, WANG Qiongyuan, et al. Study on Sensitivity Characteristic of Decomposed Gas of MoS₂ Sensor with Insulating Medium Feature[J]. High voltageapparatus, 2021, 57(10): 36-43.
DOI：

LI Liangshu, WAN Kanghong, WANG Qiongyuan, et al. Study on Sensitivity Characteristic of Decomposed Gas of MoS₂ Sensor with Insulating Medium Feature[J]. High voltageapparatus, 2021, 57(10): 36-43. DOI： 10.13296/j.1001-1609.hva.2021.10.005.

摘要

在放电、过热故障影响下

电气绝缘介质（SF

、绝缘油）会分解出一系列特征气体。通过气体组分分析

可以评估电力设备的运行状态。文中基于水热法合成了层状二硫化钼（MoS

）并组装气体传感器

分析了对于硫化氢（H

S）、二氧化硫（SO

）、一氧化碳（CO）、甲烷（CH

）、乙炔（C

）和氢气（H

）6种绝缘介质特征分解气体的敏感特性。相比较于3种商用传感器严重的交叉敏感现象

MoS

传感器对H

S表现出特异选择性。对于绝缘油分解气体（CO、C

、H

、CH

）

MoS

传感器仅对CO具备敏感特性。MoS

传感器检测H

S和CO重复性表现优异

在5次循环测试中

响应值波动范围分别不超过6.43%和5.95%。体积分数实验结果也表明

在H

S和CO体积分数小于50μL/L时

MoS

传感器的线性度（9.26%、0.62%）表现良好。此外

传感器对H

S和CO混合气体表现出协同吸附作用

且随着混合气体中H

S体积分数增加（10、30、50μL/L）

响应值波动受CO体积分数影响越小（6.74%、4.94%、3.47%）。因此

MoS

传感器在绝缘介质特征分解气体检测领域具有广阔的应用前景。

Abstract

Under the influence of discharge and overheating faults

the electrical insulating medium（SF

insulating oil

etc.）can decompose a series of characteristic gases.The operation condition of electrical equipment

can be assessed through compositional analysis of gas.In this paper

the layered molybdenum disulfide（MoS

）based on hydrothermal process is synthesized and filled in the gas sensor.The sensitive features of such six kinds of insulation medium decomposed gases as sulfuretted hydrogen（H

S）

sulfur dioxide（SO

）

carbon oxide（CO）

methane（CH

）

ethyne（C

）and hydrogen（H

）is analyzed.Compared to three commercial sensors with serious cross-sensitivity

MoS

sensor shows specific selectivity toward H

S.For insulating oil decomposition gases（CO

）

MoS

sensor is only sensitive to CO.Furthermore

MoS

sensor also has outstanding performance in detecting the repletion of H

S and CO.During the five cycles of testing the fluctuation range of response value does not exceed 7.2%and 5.95%respectively.The result of concentration test also indicates that

in case of H

S and CO below 50μL/L

the linearity of MoS

sensor is good （9.26%and 0.62%）.In addition

MoS

sensor shows a synergistic adsorption towards H

S and CO.With the increase of H

S concentration （10

50μL/L）

the influence of CO concentricity on the response values is less （6.74%

4.94%

3.47%）.Thus

the layered MoS

has a broad application prospect in the detection of insulating medium characteristic decomposition gas.

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Study on Sensitivity Characteristic of Decomposed Gas of MoS2 Sensor with Insulating Medium Feature

DOI：10.13296/j.1001-1609.hva.2021.10.005

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Abstract

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Study on Sensitivity Characteristic of Decomposed Gas of MoS₂ Sensor with Insulating Medium Feature