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YIN Xiangdong, WAn, WANG Jinyu. TiO2 Nano-tube about 30 μm Prepared by Anodic Oxidation[J]. Corrosion & Protection, 2020, 41(11): 61-64. DOI: 10.11973/fsyfh-202011010
Citation: YIN Xiangdong, WAn, WANG Jinyu. TiO2 Nano-tube about 30 μm Prepared by Anodic Oxidation[J]. Corrosion & Protection, 2020, 41(11): 61-64. DOI: 10.11973/fsyfh-202011010

TiO2 Nano-tube about 30 μm Prepared by Anodic Oxidation

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  • Received Date: September 09, 2020
  • In order to prepare longer TiO2 nano-tube, Ti sheet was anodically oxidized at direct voltage of 20 V in solution of 0.5(mass fraction)% NaF+glycerin for 7 h, at the temperature of 0 ℃, 20 ℃ and 40 ℃ respectively. The results of SEM show that the length of the TiO2 nano-tube was 1.034 μm, 2.601 μm and 5.152 μm for 0 ℃, 20 ℃ and 40 ℃ respectively. The results of current density show that balance anodic current density in the solution of 0.5 NaF+glycerin at temperature of 20 ℃ and 40 ℃ was 1.27 mA/cm2 and 1.50 mA/cm2 respectively. At the temperature of 40 ℃, in solution of 0.5% NaF+glycerin, TiO2 nano-tube could grow to about 30 μm for 36 h of anodic oxidation.
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