苝醌类光敏剂的理论计算研究     

张红雨 《蒙自师范高等专科学校学报》2000,(6)

综述了有关醌类光敏剂 (PQP)的理论计算研究 ,指出理论计算可以弥补实验手段的不足 ,深化对PQP结构与功能关系的理解 ,在这一领域是很有意义的  相似文献   

Improving photosensitization for photochemical CO2-to-CO conversion     

Ping Wang  Ru Dong  Song Guo  Jianzhang Zhao  Zhi-Ming Zhang  Tong-Bu Lu 《国家科学评论(英文版)》2020,7(9):1459

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.  相似文献