Kim Jaekwan, Whang Dong Ryeol, Park Soo Young
Center for Supramolecular Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-744, Korea.
Current address: Linz Institute for Organic Solar Cells (LIOS)/ Institute of Physical Chemistry, Johannes Kepler University Linz, 4040, Linz, Austria.
ChemSusChem. 2017 May 9;10(9):1883-1886. doi: 10.1002/cssc.201700389. Epub 2017 Apr 13.
A series of Cu photosensitizers was synthesized, characterized, and investigated for photocatalytic H evolution from water. A structure-property correlation was established for their catalytic activity and photophysical properties, which was further elaborated by DFT calculations. A new Cu photosensitizer (Cu-TPAPhen) with triphenylamine-substituted phenanthroline ligands showed unprecedentedly high turnover numbers of 19 000 when tested in combination with triethylamine as a sacrificial reagent and colloidal Pt as a H evolution catalyst. This work paves the way toward cheap metal-based photosensitizers which can replace noble-metal complexes in photocatalytic systems.
合成了一系列铜光敏剂，对其进行了表征，并研究了它们从水中光催化产氢的性能。建立了它们的催化活性与光物理性质之间的结构-性质相关性，并通过密度泛函理论（DFT）计算进一步阐述。一种具有三苯胺取代菲咯啉配体的新型铜光敏剂（Cu-TPAPhen），当与三乙胺作为牺牲试剂和胶体铂作为析氢催化剂一起测试时，显示出前所未有的高达19000的周转数。这项工作为廉价的金属基光敏剂铺平了道路，这种光敏剂可以在光催化体系中取代贵金属配合物。
