PHOTOCHEMICAL REACTION CONTROLLED BY PHOTOCHEMICAL DIODE AND ITS APPLICATION TO FIXATION OF CARBON DIOXIDE

光化学二极管控制的光化学反应及其在二氧化碳固定中的应用

• 批准号: 07651008
• 负责人: IZUMI Ikuichiro
• 金额: $ 1.34万
• 依托单位: NARA NATIONAL COLLEGE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07651008/
• 关键词: Photochemical diode; Light energy conversion; CO_2 fixation; Photocatalysis; Graphite intercalation compound; 光化学反応; 二酸化炭素; 還元反応; 酸化チタン; 半導体電極

The results of this research are summarized as follows.1.The product-separable photochemical diode was fabricated by a thermal oxidation of thin Ti metal foil as photoactive wafers, by which the cell was completely divided into two compartments2.A Xe-lamp illumination on a n-TiO_2 surface of photochemical diode in an aqueous electrolyte solution induced the production of hydrogen and oxygen on Ti metal and n-TiO_2 semiconductor, respectively, while in an aqueous solution of KHCO_3 the production of hydrocarbons such as methane and ethylene in addition to carbon monoxide on Ti metal. The hydrocarbon production was catalyzed by Cu ad-atoms deposited onto Ti metal.3.The illumination on a p-n type photochemical diode of a n-TiO_2/p-Si wafer also induced a water decomposition and a reduction of carbon dioxide. However the quantum yield is almost the same as the yield with a Shottky-type photochemical diode.4.An attempt for synthesis of graphite intercalation compounds with photocatalytic action was made electrochemically in an aqueous electrolyte solution.

本研究的主要结果如下：1.采用热氧化法制备了可分离的光化学二极管，该光化学二极管是以薄的Ti金属箔为光敏片，将电池完全分为两个部分。2.在电解质水溶液中，氙灯照射在光化学二极管的n-TiO_2表面，诱导Ti金属和n-TiO_2半导体上产生氢和氧，而在KHCO_3水溶液中，钛金属上除了产生一氧化碳外，还产生甲烷和乙烯等碳氢化合物。3.光照n-TiO_2/p-Si片的p-n型光化学二极管也能诱导水的分解和二氧化碳的还原。然而，量子产率与Shottky型光化学二极管的产率几乎相同。4.在电解质水溶液中，尝试电化学合成具有光催化作用的石墨层间化合物。

项目成果

K.Katakura, J.T.Hinatsu, K.Inatomi, M.Inaba, Z.Ogumi and Z.Takehara: ""Micro-electrode Simulation of Anode in Polymer Electrolyte Fuel Cells"" DENKI KAGAKU. 64. 711-717 (1996)

K.Katakura、J.T.Hinatsu、K.Inatomi、M.Inaba、Z.Ogumi 和 Z.Takehara：“聚合物电解质燃料电池中阳极的微电极模拟”DENKI KAGAKU。

Jun KYOKANE: "Organic Solid Capacitor with Conducting Thin Films as Electrolyte by Ion-beam-assisted Deposition" Journal of Power Sources. Vol.60. 151-155 (1996)

Jun KYOKANE：“通过离子束辅助沉积以导电薄膜作为电解质的有机固体电容器”电源杂志。

Kinji ONODA: "Acceleration of Photocatalytic Antibacterial Action of TiO_2 by Halide Ions against Oral Microorganism" DENKI KAGAKU. Vol.64. 400-402 (1996)

小野田欣二 (Kinji ONODA)：“卤化物离子加速 TiO_2 对口腔微生物的光催化抗菌作用”电气化学。

深町純子: "二液分離型p-n接合光化学ダイオードによる水分解" 電気化学協会 技術・教育研究論文誌. Vol.5(2). 113-120 (1996)

Junko Fukamachi：“使用两液分离型 p-n 结光化学二极管进行水分解”《电化学学会技术和教育研究杂志》第 5 卷（2）（1996 年）。

泉生一郎: "水溶液中での塩化銅-グラファイト層間化合物の電気化学的生成" 電気化学協会:技術・教育研究論文誌. Vol.4(2). 21-26 (1995)

泉一郎：“氯化铜-石墨插层化合物在水溶液中的电化学形成”电化学学会：技术与教育研究杂志第 4 卷（2）（1995 年）。