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TiO2 nanotube array sensor for detecting the SF6 decomposition product SO2.

Zhang X, Zhang J, Jia Y, Xiao P, Tang J - Sensors (Basel) (2012)

Bottom Line: The detection of partial discharge through analysis of SF(6) gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment.The present study proposes the use of a TiO(2) nanotube array sensor for detecting the SF(6) decomposition product SO(2), and the application of the anodic oxidation method for the directional growth of highly ordered TiO(2) nanotube arrays.The sensor response of 10-50 ppm SO(2) gas is tested, and the sensitive response mechanism is discussed.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China. zhxx@cqu.edu.cn

ABSTRACT
The detection of partial discharge through analysis of SF(6) gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment. The present study proposes the use of a TiO(2) nanotube array sensor for detecting the SF(6) decomposition product SO(2), and the application of the anodic oxidation method for the directional growth of highly ordered TiO(2) nanotube arrays. The sensor response of 10-50 ppm SO(2) gas is tested, and the sensitive response mechanism is discussed. The test results show that the TiO(2) nanotube sensor array has good response to SO(2) gas, and by ultraviolet radiation, the sensor can remove attached components very efficiently, shorten recovery time, reduce chemical poisoning, and prolong the life of the components.

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Structure sketch of the TiO2 nanotube array sensor.
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f1-sensors-12-03302: Structure sketch of the TiO2 nanotube array sensor.

Mentions: A gas-sensitive element of the TiO2 nanotube array is different from a traditional gas-sensitive element. A TiO2 nanotube array is generated directly on a metal titanium piece, not coated on traditional Si or A12O3 substrates. In the present study, a conductive silver glue was applied directly to create an electrical contact on the TiO2 nanotube array surface. The electrodes and TiO2 nanotube array were pasted firmly together to connect the leads. A schematic diagram of the sensor structure is shown in Figure 1.


TiO2 nanotube array sensor for detecting the SF6 decomposition product SO2.

Zhang X, Zhang J, Jia Y, Xiao P, Tang J - Sensors (Basel) (2012)

Structure sketch of the TiO2 nanotube array sensor.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3376569&req=5

f1-sensors-12-03302: Structure sketch of the TiO2 nanotube array sensor.
Mentions: A gas-sensitive element of the TiO2 nanotube array is different from a traditional gas-sensitive element. A TiO2 nanotube array is generated directly on a metal titanium piece, not coated on traditional Si or A12O3 substrates. In the present study, a conductive silver glue was applied directly to create an electrical contact on the TiO2 nanotube array surface. The electrodes and TiO2 nanotube array were pasted firmly together to connect the leads. A schematic diagram of the sensor structure is shown in Figure 1.

Bottom Line: The detection of partial discharge through analysis of SF(6) gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment.The present study proposes the use of a TiO(2) nanotube array sensor for detecting the SF(6) decomposition product SO(2), and the application of the anodic oxidation method for the directional growth of highly ordered TiO(2) nanotube arrays.The sensor response of 10-50 ppm SO(2) gas is tested, and the sensitive response mechanism is discussed.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China. zhxx@cqu.edu.cn

ABSTRACT
The detection of partial discharge through analysis of SF(6) gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment. The present study proposes the use of a TiO(2) nanotube array sensor for detecting the SF(6) decomposition product SO(2), and the application of the anodic oxidation method for the directional growth of highly ordered TiO(2) nanotube arrays. The sensor response of 10-50 ppm SO(2) gas is tested, and the sensitive response mechanism is discussed. The test results show that the TiO(2) nanotube sensor array has good response to SO(2) gas, and by ultraviolet radiation, the sensor can remove attached components very efficiently, shorten recovery time, reduce chemical poisoning, and prolong the life of the components.

Show MeSH
Related in: MedlinePlus