Preparation of Highly Crystalline TiO2 Mesoporous Films by Anodizing without Post-annealing

• Project/Area Number: 25810132
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic industrial materials
• Research Institution: Hokkaido University
• Principal Investigator: TSUJI Etsushi 北海道大学, 工学(系)研究科(研究院), 助教 (80610443)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
• Keywords: アノード酸化 / 酸化チタン / メソポーラス / 熱処理不要 / 結晶化

Outline of Final Research Achievements

Highly crystalline TiO2 mesoporous films were prepared by anodizing in a hot glycerol electrolyte containing phosphates without post-annealing at more than 450℃. Applied potential during anodizing became more precise by using the three electrode system. The formation rate of the anodic film was increased by increasing basicity of the electrolyte. The small amount of phosphate species containing the anodic films induced crystallization of the film during the anodizing. In addition, highly crystalline anodic films can be obtained by anodizing in the lower basic electrolyte containing phosphates at high applied voltage more than 20 V.

Research Products

• [Journal Article] 陽極酸化ナノポーラス膜のエネルギーデバイスへの応用 (2014)
  • Author(s): 辻悦司、幅崎浩樹
  • Journal Title: 静電気学会誌 Volume: 38 Pages: 254-259
  • Peer Reviewed
• [Journal Article] Morphological Control of Anodic Crystalline TiO2 Nanochannel Films for Use in Size-selective Photocatalytic Decomposition of Organic Molecules (2014)
  • Author(s): E. Tsuji, Y. Taguchi, Y. Aoki, T. Hashimoto. P. Skeldon, G. E. Thompson and H. Habazaki
  • Journal Title: Applied Surface Science Volume: 301 Pages: 500-507
  • DOI: 10.1016/j.apsusc.2014.02.113
  • NAID: 120005463901
  • Peer Reviewed
• [Presentation] 高温塩基性有機電解液中でのチタンのアノード酸化に与える無機塩添加の影響 (2015)
  • Author(s): 岡崎有杜、辻悦司、青木芳尚、幅崎浩樹
  • Organizer: 2015年 電気化学会第82回大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2015-03-15 – 2015-03-17
• [Presentation] アノード酸化による多孔質酸化物薄膜の合成とエネルギー変換材料への応用 (2015)
  • Author(s): 辻 悦司
  • Organizer: 第48回サイエンスカフェ講演会
  • Place of Presentation: 山梨大学
  • Year and Date: 2015-03-06
  • Invited
• [Presentation] 高温アルカリ性有機電解液中でのチタンのアノード酸化に及ぼす無機塩添加効果 (2015)
  • Author(s): 岡崎有杜、辻悦司、青木芳尚、幅崎浩樹
  • Organizer: 化学系学協会北海道支部2015年冬季研究発表会
  • Place of Presentation: 北海道大学
  • Year and Date: 2015-01-27 – 2015-01-28
• [Presentation] アノード酸化メソポーラスTiO2 膜の特異な成長挙動 (2014)
  • Author(s): 松浦志紀、辻 悦司、青木芳尚、幅崎浩樹
  • Organizer: 第31 回金属のアノード酸化皮膜の機能化部会
  • Place of Presentation: いこいの村あしがら、神奈川
  • Year and Date: 2014-11-20 – 2014-11-21
• [Presentation] Nanostructural Control and Photocatalytic Application of Anodic TiO2 Nanochannel Films (2014)
  • Author(s): Etsushi Tsuji, Yoshiaki Taguchi, Yoshitaka Aoki and Hiroki Habazaki
  • Organizer: 10th International Symposium on Electrochemical Micro & Nanosystem Technologies
  • Place of Presentation: Okinawa, Japan
  • Year and Date: 2014-11-05 – 2014-11-08
• [Presentation] Photoelectrochemical Applications of Crystalline TiO2 Nanochannel Films Anodized in Fluoride-free Electrolytes (2014)
  • Author(s): Etsushi Tsuji
  • Organizer: International Conference of Smart Systems Engineering 2014
  • Place of Presentation: Yonezawa, Japan
  • Year and Date: 2014-10-15 – 2014-10-17
  • Invited
• [Presentation] Formation and Applications of Anodic Crystalline TiO2 Mesoporous Films (2014)
  • Author(s): Etsushi Tsuji
  • Organizer: Academic exchange
  • Place of Presentation: Harbin, China
  • Year and Date: 2014-10-13
  • Invited
• [Presentation] サイクリックボルタンメトリーによる結晶性アノード酸化チタニア膜の生成挙動の解明 (2014)
  • Author(s): 松浦志紀、辻 悦司、青木芳尚、幅崎浩樹
  • Organizer: 2014年 電気化学秋季大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2014-09-27 – 2014-09-28
• [Presentation] 結晶性多孔質アノード酸化TiO2薄膜におけるスパッタチタン薄膜構造の影響と色素増感太陽電池特性 (2014)
  • Author(s): 辻 悦司、衡田 直人、青木 芳尚、永田 晋二、幅崎 浩樹
  • Organizer: 表面技術協会 第130回公演大会
  • Place of Presentation: 京都大学吉田キャンパス
  • Year and Date: 2014-09-22 – 2014-09-23
• [Presentation] Size-selective Photocatalytic Decomposition of Organic Molecules Using Anodic Crystalline TiO2 Mesoporous Films (2014)
  • Author(s): Etsushi Tsuji, Yoshiaki Taguchi, Yoshitaka Aoki and Hiroki Habazaki
  • Organizer: 20th International Conference on Photochemical Conversion and Storage of Solar Energy
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2014-07-27 – 2014-08-01
• [Presentation] Cyclic Voltammometric Study of the Formation of Crystalline TiO2 Mesoporous Anodic Films in Hot Phosphate/glycerol Electrolytes (2014)
  • Author(s): 松浦 志紀、辻悦司、青木芳尚、幅崎浩樹
  • Organizer: 第30回ライラックセミナー・第20回若手研究者交流会
  • Place of Presentation: 小樽自然の村おこばち山荘、小樽
  • Year and Date: 2014-06-28 – 2014-06-29
• [Presentation] Cyclic Voltammometric Study of the Formation of Crystalline TiO2 Mesoporous Anodic Films in Hot Phosphate/glycerol Electrolytes (2014)
  • Author(s): Shiki Matsuura, Etsushi Tsuji, Yoshitaka Aoki and Hiroki Habazaki
  • Organizer: 2nd International Symposium on Anodizing Science and Technology
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-06-04 – 2014-06-06
• [Presentation] 陽極酸化による結晶性メソポーラスTiO2皮膜の生成とその応用 (2014)
  • Author(s): 辻 悦司、幅崎 浩樹
  • Organizer: 第86回 金属のアノード酸化皮膜の機能化部会例会
  • Place of Presentation: 東京ビッグサイト、東京都江東区
  • Invited
• [Presentation] リン酸塩含有高温有機電解液中における結晶性アノード酸化チタニア膜の生成機構 (2014)
  • Author(s): 松浦志紀、辻悦司、青木芳尚、幅崎浩樹
  • Organizer: 化学系学協会北海道支部2014年冬季研究発表会
  • Place of Presentation: 北海道大学学術交流会館、札幌
• [Presentation] Structure Control of Mesoporous Anodic Crystalline TiO2 Films by Changing Basicity of Hot Phosphate/glycerol Electrolytes (2013)
  • Author(s): Etsushi Tsuji, Yoshiaki Taguchi, Yoshitaka Aoki and Hiroki Habazaki
  • Organizer: The 224th Electrochemical Society Meeting
  • Place of Presentation: Hilton San Francisco, San Francisco - USA
• [Remarks] 北海道大学大学院工学研究院界面電子化学研究室
  • URL: http://labs.eng.hokudai.ac.jp/labo/elechem/