Construction of Artificial Photosynthetic System Using Functional Polymers

利用功能聚合物构建人工光合系统

• 批准号: 08651044
• 负责人: KANEKO Masao
• 金额: $ 1.22万
• 依托单位: Ibaraki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08651044/
• 关键词: Artificial photosynthesis; Water oxidation; Reduction of carbon dioxide; Reduction of proton; Tris (bipyridine) ruthenium; Cobalt-phthaloocyanine; Zinc-tetraphenylporphyrin; 亜鉛テトラフェニルポルフィリン; 人工光合成系; 水の酸化触媒; ルテニウムレッド; 酸素発生; 分解距離; 電荷ホッピング距離

With the aim of developing new energy resources, construction of an artificial photosynthetic system which produces fuels from sunshine and water has been investigated. By utilizing electrode-coated polymer membranes containing dispersed functional molecules, water oxidation catalyst, carbon dioxide reduction catalyst, and proton reduction catalyst have been studied.As for the water oxidation catalyst, it has been found that ammine-coordinated trinuclear Ru complex (Ru-red) shows high activity when adsorbed into platinum black. Its activity. could successfully be analyzed based on distribution of the molecule-to-molecule distance of the dispersed complex. By using this catalyst system coupled with a Nafion membrane containing dispersed sensitizer, Ru (bpy) 32+, and by designing a bilayr system, it was succeeded to construct a photoelectrochemical water oxidation system to evolve dioxygen.For C02 reduction, cobalt-phthalocyanine (CoPc) has been found to have a high catalytic activity. The activity of its derivatives has been studied, and a new reaction mechanism proposed which involves third electron injection to the complex catalyst.

以开发新能源为目标，研究了构建利用阳光和水生产燃料的人工光合作用系统。利用含有分散功能分子的电极涂覆聚合物膜，对水氧化催化剂、二氧化碳还原催化剂和质子还原催化剂进行了研究。对于水氧化催化剂，发现了氨配位三核Ru配合物（Ru-红色）当吸附到铂黑中时表现出高活性。它的活动。可以根据分散复合物的分子间距离的分布成功地进行分析。通过使用该催化剂体系与含有分散敏化剂Ru(bpy) 32+的Nafion膜结合，并通过设计双层体系，成功构建了光电化学水氧化体系以放出分子氧。对于CO2还原，钴酞菁( CoPc）已被发现具有高催化活性。研究了其衍生物的活性，并提出了一种新的反应机理，其中涉及向络合物催化剂的第三次电子注入。

项目成果

M., Kaneko・et al.: "Photoelectrochemical proton reduction with coated zinc tetraphenylporphyrin dispersed into poly(4-vinylpyridine)" J.Porphyrins and Phthaleeyanines. 1. 215-220 (1997)

M.，Kaneko 等人：“用分散在聚（4-乙烯基吡啶）中的涂覆的四苯基卟啉锌进行光电化学质子还原”J.Porphyrins and Phthaleeyanines. 1. 215-220 (1997)。

K.Nagai et.al.: "Photoluminescence of New Watew-Insoluble Polysiloxane Film ContainingPendant Ru (bpy) 32+ and Its Quenching Dioxygen" Macromol.Chem.Phys.197. 3431-3434 (1996)

K.Nagai 等人：“含有 Ru (bpy) 32 及其淬灭双氧的新型水不溶性聚硅氧烷薄膜的光致发光”Macromol.Chem.Phys.197。

M., Kaneko・et al.: "Electrochemical CO2 reduction catalyzed by cobalt octacyanophthalocyanine and its mechanism" J.Porphyrins and Phthaleeyanines. 1. 315-321 (1997)

M.，Kaneko 等：“八氰基酞菁钴催化的电化学 CO2 还原及其机理”J.Porphyrins and Phthaleeyanines 1. 315-321 (1997)。

T., Abe・F., Taguchi・S., Tokita・M., Kaneko: "Prussian White as a highly active moleucular catalyst for proton reduction" J.Mol.Cat.,A:Chem.126. L89-L92 (1997)

T.、Abe・F.、Taguchi・S.、Tokita・M.、Kaneko：“普鲁士白作为质子还原的高活性分子催化剂”J.Mol.Cat.，A：Chem.126（ 1997）

M.Kaneko et al.: "Photoelectrochemical proton reduction with coated zinc tetraphenyl-porphyrin dispersed into poly(4-vinylpyridine)" J.Porphyrins and Phthalooyanines. 1. 215-220 (1997)

M.Kaneko 等人：“用分散在聚（4-乙烯基吡啶）中的涂覆的四苯基卟啉锌进行光电化学质子还原”J.Porphyrins 和 Phthalooyanines。