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Citation: YIN Yu-Xin, JIN Zheng-Guo, TAN Xin, HOU Feng, ZHAO Lin. Effect of Anions on the Electrochemical Formation of TiO₂ Nanotube Arrays in a Glycerol Based Electrolyte[J]. Acta Physico-Chimica Sinica, ;2008, 24(11): 2133-2138. doi: 10.3866/PKU.WHXB20081133 shu

Effect of Anions on the Electrochemical Formation of TiO₂ Nanotube Arrays in a Glycerol Based Electrolyte

1.
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072; Key Laboratory for Advanced Ceramics and Machining Technology of the Ministry of Education, Tianjin University, Tianjin 300072

Received Date: 15 May 2008
Available Online: 26 September 2008

The formation of titania nanotubes was achieved by electrochemical anodization in glycerol based
electrolytes. We investigated the effect of three anionic species, anodic time and NaAc concentration on the formation of TiO2 nanotubes. The choice of anion was found to be a key parameter influencing both the nanotube growth rate and the resultant nanotube length. Longer tube lengths were obtained by adding NaNO3 and NaCl, by increasing the current density and by increasing the electrochemical etching rate at tube’s bottom. The current density and the electrochemical etching rate at the tube’s bottom decreased with added NaAc. Electrolytes with added NaAc were much more efficient at producing longer nanotubes, by effectively slowing the chemical dissolution rate at the top of the tube.
- Titania nanotube arrays; Anodization; Anion
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1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Effect of Anions on the Electrochemical Formation of TiO2 Nanotube Arrays in a Glycerol Based Electrolyte

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通讯作者: 陈斌, bchen63@163.com

Effect of Anions on the Electrochemical Formation of TiO₂ Nanotube Arrays in a Glycerol Based Electrolyte