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K型分子筛负载多壁碳纳米管对局部放电下SF₆分解气体检测的灵敏度分析

Analysis of the Sensitivity of K-Type Molecular Sieve-Deposited MWNTs for the Detection of SF₆ Decomposition Gases under Partial Discharge.

作者信息

Zhang Xiaoxing, Li Xin, Luo Chenchen, Dong Xingchen, Zhou Lei

机构信息

State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.

School of Electrical Engineering, Wuhan University, Wuhan 430072, China.

出版信息

Sensors (Basel). 2015 Nov 11;15(11):28367-84. doi: 10.3390/s151128367.

DOI:10.3390/s151128367
PMID:26569245
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4701284/
Abstract

Sulfur hexafluoride (SF6) is widely utilized in gas-insulated switchgear (GIS). However, part of SF6 decomposes into different components under partial discharge (PD) conditions. Previous research has shown that the gas responses of intrinsic and 4 Å-type molecular sieve-deposited multi-wall carbon nanotubes (MWNTs) to SOF2 and SO2F2, two important decomposition components of SF6, are not obvious. In this study, a K-type molecular sieve-deposited MWNTs sensor was developed. Its gas response characteristics and the influence of the mixture ratios of gases on the gas-sensing properties were studied. The results showed that, for sensors with gas mixture ratios of 5:1, 10:1, and 20:1, the resistance change rate increased by nearly 13.0% after SOF2 adsorption, almost 10 times that of MWNTs sensors, while the sensors' resistance change rate with a mixture ratio of 10:1 reached 17.3% after SO2F2 adsorption, nearly nine times that of intrinsic MWNT sensors. Besides, a good linear relationship was observed between concentration of decomposition components and the resistance change rate of sensors.

摘要

六氟化硫（SF6）广泛应用于气体绝缘开关设备（GIS）。然而，部分SF6在局部放电（PD）条件下会分解成不同的成分。先前的研究表明，本征型和4 Å型分子筛沉积的多壁碳纳米管（MWNTs）对SF6的两种重要分解成分SOF2和SO2F2的气体响应并不明显。在本研究中，开发了一种K型分子筛沉积的MWNTs传感器。研究了其气体响应特性以及气体混合比例对气敏性能的影响。结果表明，对于气体混合比例为5:1、10:1和20:1的传感器，吸附SOF2后电阻变化率增加了近13.0%，几乎是MWNTs传感器的10倍，而混合比例为10:1的传感器在吸附SO2F2后电阻变化率达到17.3%，几乎是本征MWNT传感器的9倍。此外，分解成分浓度与传感器电阻变化率之间存在良好的线性关系。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/56a5ab63d015/sensors-15-28367-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/37dab263e283/sensors-15-28367-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/0b17ee17358c/sensors-15-28367-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/c74fd85d8cde/sensors-15-28367-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/20786eabf83b/sensors-15-28367-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/40f3d353e188/sensors-15-28367-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/0e144c8dd294/sensors-15-28367-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/1a076f0fbc9e/sensors-15-28367-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/1cac66f2d46d/sensors-15-28367-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/d0b0b9715e9f/sensors-15-28367-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/56a5ab63d015/sensors-15-28367-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/37dab263e283/sensors-15-28367-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/d4b1a1a7f159/sensors-15-28367-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/b5ba616fa20a/sensors-15-28367-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/cbc0e8fa2b3a/sensors-15-28367-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/0b17ee17358c/sensors-15-28367-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/c74fd85d8cde/sensors-15-28367-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/20786eabf83b/sensors-15-28367-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/40f3d353e188/sensors-15-28367-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/0e144c8dd294/sensors-15-28367-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/1a076f0fbc9e/sensors-15-28367-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/1cac66f2d46d/sensors-15-28367-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/d0b0b9715e9f/sensors-15-28367-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7db6/4701284/56a5ab63d015/sensors-15-28367-g013.jpg

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