| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
분자전자 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Rapid Exciton Migration and Effective Photocatalytic CO2 Reduction in a Re(I) Doped-Porphyrinic Metal-Organic Frameworks (MOFs) Hybrid System |
| 초록 |
A porphyrinic metal-organic framework (PMOF) known as PCN-222(Zn) was chemically doped by with the molecular Re(I) catalyst bearing carboxylate anchoring group to form a new type of MOF-Re(I) hybrid photocatalyst. The porphyrinic MOF-sensitized hybrid (PMOF/Re) prepared with an archetypical CO2 reduction catalyst, (L)ReI(CO)3Cl (Re(I); L = 4,4′-dicarboxylic-2,2′-bipyridine), in the presence of 3 vol% water produced CO with no leveling-off tendency for 59 h to give a turnover number of ≥1893 (1,070 ± 80 μmol h–1 (g MOF)–1). The high catalytic activity arises mainly from efficient exciton migration and funneling from photoexcited porphyrin linkers to the peripheral Re(I) catalytic sites, which is in accordance with the observed fast exciton (energy) migration (≈1 ps) in highly ordered porphyrin photoreceptors and the effective funneling into Re(I) catalytic centers in Re(I)-doped PMOF sample. |
| 저자 |
서윤정, 이상훈, 이대한, 최성한, 김소연, 김철훈, 강상욱, 손호진
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| 소속 |
고려대 |
| 키워드 |
CO2 reduction; phorphyrin; photocatalyst
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| E-Mail |
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