| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Dendritic Binuclear Photocatalyst (Ru-Pt/Ir-Pt) For Photoinduced Hydrogen Generation: Synthesis, Photophysical Study, and Its Hydrogen Generation from Water Splitting Reaction |
| 초록 |
In an effort to develop an efficient photocatalytic system, a series of efficient light-harvesting systems (Ru-PtGx, x=1-3) based on dendritic 4-phenylcarbazole derivatives coupled with two types of photosensitizers ([Ru(bpy)3]2+ or [Ir(C^N)2(N^N)]+) were prepared. The photophysical parameters (emission maximum, molar absorptivity, and quautum efficiency) were measured. The photophysical study showed the efficient SS and TT energy transfer from the dendritic carbazole uint to the core sensitizer, indicating that the carbazole unit is an efficient light absorber and core Ru or Ir sensitizer functions as a spatial energy concentrator. In turn, it suggests that the photo-induced electron of sensitizer can be more efficiently transported into the neighboring water reduction center (Pt). Each compound was then used as a single-component photocatalyst (donor(dendritic carbazole)sensitizer(Ru or Ir)acceptor(Pt) triad) in a standard photo-induced hydrogen production system. |
| 저자 |
이수현, 김은정, 손호진, 권순남, 고재중, 강상욱
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| 소속 |
고려대 |
| 키워드 |
dendritic binuclear photocatalyst; hydrogen generation
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| E-Mail |
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