Synthesis of rutile and anatase films with high surface areas in aqueous solutions containing urea

Satoshi Yamabi, Hiroaki Imai

研究成果: Article査読

59 被引用数 (Scopus)

抄録

Rutile and anatase TiO2 films were successfully fabricated in TiOSO4 aqueous solutions containing urea at near room temperature. The molar ratio of urea to Ti (R) in the precursor solutions determined the crystal phase of the TiO2 films. Rapid precipitation from highly supersaturated solutions was inhibited by complexing Ti4+ cations with urea, and continuous thin films of rutile and anatase were constructed on substrates. The specific surface area of the films increased from 170 to 360 m2/g with increasing R. The urea affected the specific surface area by selective adsorption on the specific surface of crystallites.

本文言語English
ページ(範囲)86-93
ページ数8
ジャーナルThin Solid Films
434
1-2
DOI
出版ステータスPublished - 2003 6月 23

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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