TiO₂ Nanotube Arrays Fabricated by Anodization

Abstract:

TiO₂ nanotube arrays were fabricated through anodization in the glycol electrolyte system. The new composite structures of the bottom nanotube and the upper nanowire with a length of 15 um to 20 um were prepared. The influence of the water contents in the electrolyte with respect to the composite structure was studied through two-step anodization. The results show that the composite structure can be obtained based on the moderate etching rate of the electrolyte and the selective etching of the nanotube when the glycol system electrolyte contains 0.4wt% NH₄F and 2 vol% H₂O.

• Periodical: Advanced Materials Research (Volume 773)
• Pages: 682-686
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.773.682
• Online since: September 2013
• Authors: Shi Qing Yang, Bai Xu, Tao Hua Liang, Yi Feng Meng, Qing Xue Yang, Ming Jun Tang
• Keywords: Anodization, Nanotube, Titanium Oxide, Two-Step Anodization

References

[1] Varghese OK, Gong D, et al. Extreme charges in the electrical resistance of titania nanotubes with hydrogen exposure[J]. Advanced Material, 2003, 15 (7-8): 624-627.

DOI: 10.1002/adma.200304586

[2] Mor G K, Shankar K, Paulose M, er al. Enhanced photocleavage of water using titania nanotube arrays[J]. Nano Lett, 2005, 5(1): 191-195.

DOI: 10.1021/nl048301k

[3] Meida Ye, Jiaojiao Gong, et al. High-Efficiency Photoelectrocatalytic Hydrogen Generation Enabled by Palladium Quantum Dots-Sensitized TiO2 Nanotube Arrays[J]. J. Am. Chem. Soc, 2012, 134(38): 15720–15723.

DOI: 10.1021/ja307449z

[4] Paulose M, Mor GK, et al. Visible light photoelectrochemical and water-photoelectro chemical and water photoelectrolysis properties of Photochemistry and Photobiology[J]. Chemistry, 2006, 178(1): 8-15.

DOI: 10.1016/j.jphotochem.2005.06.013

[5] Sheng-Lian Luo, Li-Xia Yang. Function oxidized titanium dioxide nanotube array material and environmental applications[M]. BeiJing: Science Press, 2011: 18-23.

[6] Gong D, Grimes C, Varghese O, et al. Titanium oxide nanotube arrays prepared by anodic oxidation[J]. Joural of Material Research, 2001, 16(12): 3331-3334.

DOI: 10.1557/jmr.2001.0457

[7] Varghese OK, Gong D, Paulose M, et al. Hydrogen sensing using titania nanotubes[J]. Sensors and Actuators B: Chemical, 2003, 93(1-3): 338-344.

DOI: 10.1016/s0925-4005(03)00222-3

[8] Taveira VL, Macak MJ, Tsuchiya, et al. Initiation and growth of self-organized TiO2 nanotubes anodically formed in NH4F/(NH4)2SO4 electrolytes[J]. Journal of The Electrochemical Society, 2005, 152(10): 405-410.

DOI: 10.1149/1.2008980

[9] Paulose M, Prakasam HE, Varghese OK, et al. TiO2 nanotube arrays of 1000um length by anodization of titanium foil[J]. Journal of Physical Chemistry C, 2007, 111(41): 14992-14997.

DOI: 10.1021/jp075258r

[10] Z Wu, S Guo, H Wang, et al. Synthesis of immobilized TiO2 nanowires by anodic oxoidation and their gas phase photocatalytic properties[J]. Electroch- emistry Communications, 2009, 11(8): 1692-1695.

DOI: 10.1016/j.elecom.2009.06.031

[11] Ahmed EI Ruby Mohmed, Sohrab Rohani. Modified TiO2 nanotube arrays (TNTAs): progressive strategies towards visible light responsive photoanode, a review[J]. Energy & Environmental Science. 2011, 4: 1065-1086.

DOI: 10.1039/c0ee00488j

[12] JM Macak, SP Albu, P Schmuki. Towards ideal hexagonal self-ordering of TiO2 nanotubes[J]. Physica Status Solidi Rapid Research Letters, 2007, 1(5): 181-183.

DOI: 10.1002/pssr.200701148

[13] Jing-Fei Chen. Properties improvement of TiO2 nanotube arrays and their application in dye-sensitized solar cells: [PhD thesis][D]. Shanghai Jiao Tong University, (2011).

[14] Hai-Jun Tao. TiO2 nanotube arrays fabricated by anodization and performance research: [PhD thesis][D]. Nanjing University of Aeronautics and Astronautics, (2007).