Effect of ultrasonication on anodic oxidation of titanium

Naoya ENOMOTO; Masaaki KURAKAZU; Miki INADA; Kai KAMADA; Junichi HOJO; Wan-In LEE

doi:10.2109/jcersj2.117.369

Papers

Effect of ultrasonication on anodic oxidation of titanium

Naoya ENOMOTO, Masaaki KURAKAZU, Miki INADA, Kai KAMADA, Junichi HOJO, Wan-In LEE

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Keywords: Anodization, Mesoporous titania, Sonochemistry, Ultrasound

JOURNAL FREE ACCESS

2009 Volume 117 Issue 1363 Pages 369-372

DOI https://doi.org/10.2109/jcersj2.117.369

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Abstract

Porous titania (TiO₂) was synthesized under ultrasonic vibration via an anodic oxidation of titanium metal in various kinds of electrolyte such as HNO₃, H₂SO₄, and their mixture. HNO₃ resulted in amorphous or poorly-crystalline particles with mesopores while H₂SO₄ resulted in dense and crystalline film with macropores. Ultrasound in general decreased the maximum voltage, film thickness, and a rutile phase, while it increased the region for the formation of mesoporous structure. Role of ultrasound on the anodic oxidation is discussed.

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