We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Improving photosensitization for photochemical CO<sub>2</sub>-to-CO conversion.
- Authors
Wang, Ping; Dong, Ru; Guo, Song; Zhao, Jianzhang; Zhang, Zhi-Ming; Lu, Tong-Bu
- Abstract
Inspired by nature, improving photosensitization represents a vital direction for the development of artificial photosynthesis. The sensitization ability of photosensitizers (PSs) reflects in their electron-transfer ability, which highly depends on their excited-state lifetime and redox potential. Herein, for the first time, we put forward a facile strategy to improve sensitizing ability via finely tuning the excited state of Ru(II)-PSs (Ru-1 – Ru-4) for efficient CO2 reduction. Remarkably, [Ru(Phen)2(3-pyrenylPhen)]2+ (Ru-3) exhibits the best sensitizing ability among Ru-1 – Ru-4 , over 17 times higher than that of typical Ru(Phen)32+. It can efficiently sensitize a dinuclear cobalt catalyst for CO2-to-CO conversion with a maximum turnover number of 66 480. Systematic investigations demonstrate that its long-lived excited state and suitable redox driving force greatly contributed to this superior sensitizing ability. This work provides a new insight into dramatically boosting photocatalytic CO2 reduction via improving photosensitization.
- Subjects
ARTIFICIAL photosynthesis; COBALT catalysts; TURNOVER frequency (Catalysis); PHOTOREDUCTION; EXCITED states; RUTHENIUM catalysts
- Publication
National Science Review, 2020, Vol 7, Issue 9, p1459
- ISSN
2095-5138
- Publication type
Article
- DOI
10.1093/nsr/nwaa112