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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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Sensitivity of the TiO2 nanotube array sensor at different working temperatures.
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f5-sensors-12-03302: Sensitivity of the TiO2 nanotube array sensor at different working temperatures.

Mentions: Figure 5 shows the curve of the sensitivity of the TiO2 nanotube array sensor at different working temperatures (i.e., surface temperature). The chart indicates that when work temperature is lower, the sensitivity of the sensor increases with the rise in its working temperature. When the temperature reaches 200 °C, the sensor reaches it maximum sensitivity at −76%. When the working temperature continues to rise, the sensitivity tends to be saturated and remains basically unchanged. Therefore, the best working temperature for the TiO2 nanotube array sensor is about 200 °C.


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

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

Sensitivity of the TiO2 nanotube array sensor at different working temperatures.
© Copyright Policy
Related In: Results  -  Collection

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

f5-sensors-12-03302: Sensitivity of the TiO2 nanotube array sensor at different working temperatures.
Mentions: Figure 5 shows the curve of the sensitivity of the TiO2 nanotube array sensor at different working temperatures (i.e., surface temperature). The chart indicates that when work temperature is lower, the sensitivity of the sensor increases with the rise in its working temperature. When the temperature reaches 200 °C, the sensor reaches it maximum sensitivity at −76%. When the working temperature continues to rise, the sensitivity tends to be saturated and remains basically unchanged. Therefore, the best working temperature for the TiO2 nanotube array sensor is about 200 °C.

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