Abstract
In this paper, we report the growth and characteristics of titania nanotube arrays prepared by anodic oxidation and then annealed in an oxygen atmosphere at 500°C. The titania nanotube arrays presented high sensitivity to hydrogen gas. The crystalline phase of the samples was checked by X-ray diffraction (XRD). The differences in the nanotubes morphology attributed to the etched samples due to anodization potential, reaction time and the electrolyte concentration were analyzed by scanning electron microscopy (SEM). The gas sensitive parameters of the samples were obtained from resistance, the response time and the recovery time at different temperatures.
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Hazra S K, Tripathy S R, Alessandri I. Characterizations of porous titania thin films produced by electrochemical etching. J Mater Sci Eng B, 2006, 131: 135–141
Mor G K, Varghese O K, Paulose M, et al. A review on highly ordered, vertically oriented TiO2 nanotube arrays: Fabrication, material properties, and solar energy applications. J Sol Energy Mater. Sol Cells, 2006, 90: 2011–2075
Gong D, Grimes C A, Varghese O K, et al. Titanium oxide nanotube arrays prepared by anodic oxidation. J Mater Res, 2001, 16: 3331–3334
Xu Y L, Yao K, Zhou X H, et al. Platinum-titania oxygen sensors and their sensing mechanisms. J Sens Actuators B, 1993, 14(1–3): 492–494
Hasegawa S, Sasaki Y, Matsuhara S. Oxygen-sensing factor of TiO2 doped with metal ions. J Sens Actuators B, 1993, 14(13): 509–510
Rothschild A, Edelman F, Komem Y, et al. Sensing behavior of TiO2 thing films exposed to air at low temperatures. J Sens Actuators B, 2000, 67: 282–289
Ruiz A, Sakai G, Cornet A. Cr-doped TiO2 gas sensor for exhaust NO2 monitoring. J Sens Actuators B, 2003, 93: 509–518
Ruiz A, Dezanneau G, Arbiol J, et al. Study of the influence of Nb content and sintering temperature on TiO2 sensing films. J Thin Solid Films, 2003, 436: 90–94
Bevenot X, Trouillet A, Veillas C, et al. Hydrogen leak detection using an optical fibre sensor for aerospace applications. Sens Actuators B, 2000, 67: 57–67
Varghese O K, Gong D, Paulose M, et al. Crystallization and high-temperature structural stability of titanium oxide nanotube arrays. J Mater Res, 2003, 18: 156–165
Akbar S A, Younkman L B. Sensing mechanism of a carbon monoxide sensor based on anatase titania. J Electrochem Soc, 1997, 144: 1750–1753
Savage N O, Akbar S A, Dutta P K. Titanium dioxide based high temperature carbon monoxide selective sensor. Sens Actuators B, 2001, 72: 239–248
Birkefeld L D, Azad A M, Akbar S A. Carbon monoxide and hydrogen detection by anatase modification of titanium dioxide. J Am Ceram Soc, 1992, 75: 2964–2968
Madou M J, Morrison S R. Chemical Sensing with Solid State Devices. New York: Academic Press, 1989
Xue X Y, Chen Y J, Wang Y G, et al. Synthesis and ethanol sensing properties of ZnSnO3 nanowires. Appl Phys Lett, 2005, 86: 233101–233103
Gu Y F. Preparation and acetone sensitive properties of LaFeO3-based thin films by polymerizable complex method (in Chinese). Master Dissertation. Tianjin: Tianjin University, 2005
Varghese O K, Gong D W, Paulose M, et al. Hydrogen sensing using titania nanotubes. Sens Actuators B, 2003, 93: 338–344
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Ji, H., Lu, H., Ma, D. et al. Preparation and hydrogen gas sensitive characteristics of highly ordered titania nanotube arrays. Chin. Sci. Bull. 53, 1352–1357 (2008). https://doi.org/10.1007/s11434-008-0120-0
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DOI: https://doi.org/10.1007/s11434-008-0120-0