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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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TiO2 nanotube array sensor response to different concentrations of SO2 at a 200 °C working temperature.
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f7-sensors-12-03302: TiO2 nanotube array sensor response to different concentrations of SO2 at a 200 °C working temperature.

Mentions: According to procedures of the experiment described in Section 2.3, under the condition that the sensor is under a 200 °C working temperature, the gas sensitivity (response curve) of the TiO2 nanotube array sensor is measured at SO2 gas concentrations of 10, 20, 30, 40 and 50 ppm, and the result is shown in Figure 7. The figure illustrates that the bigger the concentration of SO2 gas, the higher the sensor response (sensitivity).


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

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

TiO2 nanotube array sensor response to different concentrations of SO2 at a 200 °C working temperature.
© Copyright Policy
Related In: Results  -  Collection

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

f7-sensors-12-03302: TiO2 nanotube array sensor response to different concentrations of SO2 at a 200 °C working temperature.
Mentions: According to procedures of the experiment described in Section 2.3, under the condition that the sensor is under a 200 °C working temperature, the gas sensitivity (response curve) of the TiO2 nanotube array sensor is measured at SO2 gas concentrations of 10, 20, 30, 40 and 50 ppm, and the result is shown in Figure 7. The figure illustrates that the bigger the concentration of SO2 gas, the higher the sensor response (sensitivity).

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