2007 Fiscal Year Final Research Report Summary
Development and mechanism elucidation of novel photoreaction processes in microreactors
| Project/Area Number |
18510109
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
MATSUSHITA Yoshihisa Tokyo Institute of Technology, Graduate School of Science, Assistant Professor (80240753)
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| Project Period (FY) |
2006 – 2007
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| Keywords | Microreactor / Photocatalyst / Asymmetric Synthesis / Alkylation / Carbon Dioxide Recycling / Water-splitting / Multiphase Flow |
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| Research Abstract |
Photochemical reactions carried out in microreactors can be expected to exhibit some advantages, such as higher spatial illumination homogeneity and better light penetration through the entire reactor depth, and larger illuminated surface area per unit volume in comparison with those conducted in large-scale reactors. Therefore, we have developed microreactors optimized for photoreactions.
Photodimerization and asymmetric photocycloaddition reactions were examined as model reactions. We observed not only the drastic increase of the quantum efficiency of the reaction, but also the enhancement of stereoselectivity in the microreaction system. In the micro-flow system, the residence time of the substrate is very short and the reaction vessel does not retain the reaction products. These facts may prevent sequential side reactions and increase the yield and selectivity of the asymmetric reaction.
Photocatalytic oxidation and reduction of organic compounds, amine N-alkylation, and carbon dioxide fixation processes were investigated in the photocatalytic microreaction system. These model reactions proceeded quite rapidly with considerably large photonic efficiencies.
Photocatalytic reduction of CO 2 was examined by using several sort of metal co-catalyst loaded on the TiO 2 surface. Though it has been known that CO 2 in aqueous solution can be photocatalytically reduced, only very low reaction yields were reported by using large-scale batch reaction systems. The reaction proceeded very quickly to form methanol as the main product in our microreaction system. The yield of methanol is more than 1000 times larger than that obtained in conventional batch reaction systems and further increased under multiphase flow condition.
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[Journal Article] 4. Photocatalytic Oxidation and Alkylation Processes in Microreactors2008
Author(s)
Y., Matsushita, N., Ohba, S., Kumada, K., Sakeda, T., Suzuki, T., Ichimura
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Journal Title
IEEE Review on Advances in Micro, Nano, and Molecular Systems Volume 2(in press)
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 9. Photocatalytic Reactions in Microreactors2008
Author(s)
Y., Matsushita, N., Ohba, S., Kumada, K., Sakeda, T., Suzuki, T., Ichimura
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Journal Title
Chem. Eng. J 135S
Pages: 303-308
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 11. Photoreactions2008
Author(s)
Teijiro, Ichimura, Yoshihisa, Matsushita, Kosaku, Sakeda, Tadashi, Suzuki
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Journal Title
In : Thomas R. Dietrich (ed.) Microchemical Engineering in Practice (in press)
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 5. Recent progress on photoreactions in microreactors2007
Author(s)
Y., Matsushita, T., Ichimura, N., Ohba, S., Kumada, K., Sakeda, T., Suzuki, H., Tanibata, T., Murata
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Journal Title
Pure Appl. Chem 79
Pages: 1959-1968.
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 6. Photosynthesis of High-Value Added Compounds in a Microreaction System2007
Author(s)
Y., Matsushita, A., Murata, T., Murata, H., Tanibata, T., Suzuki, T., Ichimura
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Journal Title
Micro Total Analysis Systems 2007,2
Pages: 1462-1464
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] 8. Asymmetric photosensitized addition of methanol to (R)-(+)-(Z)-limonene in a microreactor2007
Author(s)
K., Sakeda, K., Wakabayashi, Y., Matsushita, T., Ichimura, T., Suzuki, T., Wada, Y., Inoue, J., Photochem., Photobiol.
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Journal Title
A : Chemistry 192
Pages: 166-171
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Photoreactions in Microreactors2006
Author(s)
Teijiro Ichimura, Kosaku Sakeda, Yoshihisa Matsushita, Tadashi Suzuki, Hideki Tanibata, Toshinori Murata
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Journal Title
Micro Total Analysis System 2006 1
Pages: 804-806
Description
「研究成果報告書概要(和文)」より
Peer Reviewed
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[Journal Article] 3. Photoreactions in Microreactors2006, Society for Chemistry and Micro-Nano Systems2006
Author(s)
T., Ichimura, K., Sakeda, Y., Matsushita, T., Suzuki, H., Tanibata, T., Murata
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Journal Title
Micro Total Analysis System 2006
Pages: 804-806
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 12. Photosynthesis Of High-Value Added Compounds In A Microreaction System2007
Author(s)
Yoshihisa, Matsushita, Akiko, Murata, Toshiaki, Murata, Hideki, Tanibata, Tadashi, Suzuki, Teijiro, Ichimura
Organizer
The 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Place of Presentation
Paris
Year and Date
2007-10-12
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Photoreactions in Microspace2007
Author(s)
Yoshihisa Matsushita, Mayuko Iwasawa, Nobuko Ohba, Shinji Kumada, Tadashi Suzuki, Teijiro Ichimura
Organizer
The XXIIIrd International Conference on Photochemistry
Place of Presentation
Cologne
Year and Date
2007-08-01
Description
「研究成果報告書概要(和文)」より
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[Presentation] 10. Photoreactions in Microspace2007
Author(s)
Yoshihisa, Matsushita, Mayuko, Iwasawa, Naoki, Usami, Tadashi, Suzuki, Teijiro, Ichimura
Organizer
The XXIIIrd International Conference on Photochemistry
Place of Presentation
Cologne
Year and Date
2007-08-01
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 8. Organic syntheses by photocatalytic reaction in microreactors2007
Author(s)
Y., Matsushita, M., Iwasawa, N., Ohoba, S., Kumada, T., Suzuki, T., Ichimura
Organizer
1st International Symposium of Nanomedicine -from Basic to Applications and 2nd Molecule-Based Information Transmission and Reception
Place of Presentation
Okazaki
Year and Date
2007-04-20
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 9. Organic syntheses by photocatalytic reaction in microreactors2007
Author(s)
Yoshihisa, Matsushita, Mayuko, Iwasawa, Nobuko, Ohba, Shinji, Kumada, Tadashi, Suzuki, Teijiro, Ichimura
Organizer
The 11th Korea-Japan Symposium on Catalysis
Place of Presentation
Seoul
Year and Date
2007-03-22
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 5. Organic Reactions in a Photocatalytic Microreaction System2007
Author(s)
Y., Matsushita, T., Ichimura, M., Iwasawa, N., Ohoba, S., Kumada, T., Suzuki
Organizer
The 5th Micro-chemical plant international workshop
Place of Presentation
Kyoto
Year and Date
2007-01-26
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 4. Photocatalytic Oxidation and Alkylation Processes in Microreactors2007
Author(s)
Yoshihisa, Matsushita, Mayuko, Iwasawa, Nobuko, Ohba, Shinji, Kumada, Tadashi, Suzuki, Teijiro, Ichimura
Organizer
Conference on Nano/Micro Engineered and Molecular Systems
Place of Presentation
Bangkok
Year and Date
2007-01-11
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Photocatalytic Organic Synthesis in Microreactors2006
Author(s)
Yoshihisa Matsushita, Kosaku Sakeda, Tadashi Suzuki, Teijiro Ichimura, Hideki Tanibata, Toshinori Murata
Organizer
10th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Place of Presentation
Tokyo
Year and Date
2006-11-07
Description
「研究成果報告書概要(和文)」より
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[Presentation] 1. Photocatalytic Organic Synthesis in Microreactors2006
Author(s)
Yoshihisa, Matsushita, Kosaku, Sakeda, Tadashi, Suzuki, Teijiro, Ichimura, Hideki, Tanibata, Toshinori, Murata
Organizer
10th International Conference on Miniaturized Systems for Chemistry and Life Sciences
Place of Presentation
Tokyo
Year and Date
2006-11-07
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Photocatalytic Reaction in Microreactors2006
Author(s)
Yoshihisa Matsushita, Yoshihisa Matsushita, Kosaku Sakeda, Tadashi Suzuki, Teijiro Ichimura, Hideki Tanibata, Toshinori Murata
Organizer
The 9th International Conference on Microreaction Technology
Place of Presentation
Berlin
Year and Date
2006-09-07
Description
「研究成果報告書概要(和文)」より
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[Presentation] 3. Photocatalytic Reaction in Microreactors2006
Author(s)
Yoshihisa, Matsushita, Yoshihisa, Matsushita, Kosaku, Sakeda, Tadashi, Suzuki, Teijiro, Ichimura, Hideki, Tanibata, Toshinori, Murata
Organizer
The 9th International Conference on Microreaction Technology
Place of Presentation
Berlin
Year and Date
2006-09-07
Description
「研究成果報告書概要(欧文)」より
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[Presentation] 2. Multiphase Photocatalytic Reactions in Microreactors2006
Author(s)
Yoshihisa, Matsushita, Kosaku, Sakeda, Tadashi, Suzuki, Teijiro, Ichimura, Hideki, Tanibata, Toshinori, Murata
Organizer
1st European Chemistry Congress
Place of Presentation
Budapest
Year and Date
2006-08-31
Description
「研究成果報告書概要(欧文)」より
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