%0 Journal Article
%T A Pt-Doped TiO2 Nanotube Arrays Sensor for Detecting SF6 Decomposition Products
%A Xiaoxing Zhang
%A Jing Tie
%A Jinbin Zhang
%J Sensors
%D 2013
%I MDPI AG
%R 10.3390/s131114764
%X The detection of partial discharge and analysis of SF 6 gas components in gas-insulated switchgear (GIS) is important for the diagnosis and operating state assessment of power equipment. The use of a Pt-doped TiO 2 nanotube arrays sensor for detecting sulfur hexafluoride (SF 6) decomposition products is proposed in this paper. The electrochemical pulse deposition method is employed to prepare the sensor array. The sensor¡¯s response to the main characteristic gaseous decomposition products of SF 6 is evaluated. The gas sensing characteristic curves of the Pt-doped TiO 2 nanotube sensor and intrinsic TiO 2 nanotube arrays sensor are compared. The mechanism of the sensitive response is discussed. Test results showed that the Pt-doped nanoparticles not only change the gas sensing selectivity of the TiO 2 nanotube arrays sensor with respect to the main characteristic SF 6 decomposition products, but also reduce the operating temperature of the sensor.
%K gas sensor
%K Pt doped
%K TiO2 nanotube arrays
%K SF6 decomposition products
%U http://www.mdpi.com/1424-8220/13/11/14764