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2022 Fiscal Year Final Research Report

Development of novel photocatalyst directed toward the reduction of CO2 in air

Research Project

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Project/Area Number 20K05686
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 36020:Energy-related chemistry
Research InstitutionKyoto University

Principal Investigator

KAJIWARA Takashi  京都大学, 高等研究院, 特定研究員 (80422799)

Project Period (FY) 2020-04-01 – 2023-03-31
Keywords二酸化炭素還元 / 多孔性配位高分子 / 光触媒 / 物質分離
Outline of Final Research Achievements

To achieve the sustainable development goals, CO2 reduction into high value-added molecules utilizing renewable energy is one of the most important research topics. In this study, composite catalysts based on porous coordination polymers and molecular complex catalysts were synthesized and characterized. The composite catalysts showed unusual CO2 reduction reactivity, which most probably results from the synergistic effect between the CO2 enrichment in the micropores and the CO2 reduction at the wall of the pore.

Free Research Field

錯体化学

Academic Significance and Societal Importance of the Research Achievements

人工光合成の開発は高純度の二酸化炭素を原料ガスとして使用することを前提として進められてきたが,二酸化炭素は通常排ガスをはじめ空気など常に低濃度の混合ガスとして存在しており,高純度ガスを得るための精製過程には莫大なエネルギーが必要となる.本研究では,二酸化炭素の分離・濃縮と還元反応とを多孔性配位高分子のミクロ孔中で一度に行うことにより,このような精製過程を必要とせずに混合ガスのまま反応に供することができるということを明らかにした点で,空気を直接利用する天然光合成に一歩近づく成果であり,精製コストの削減などの観点からも大きな意義を持つ.

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Published: 2024-01-30  

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