| 초록 |
Photocatalytic water splitting is one of the most efficient and eco-friendly way to make hydrogen from water using sunlight. As a photosensitizer, supramolecular organic template materials have been highlighted recently, in that their good tunability and cheap price. However, their catalytic performance has not yet been up to the mark. In this study, we demonstrate self-assembled nanomaterials formed by strong interaction among cyanostilbene-based molecules in water. Interestingly, ribbon-like 2D nanocrystals are formed by the cyanostilbene itself and act as effective photosensitizer templates for enhancing performance of colloidal Pt catalyst, which provides 2500 of turnover number (TON) after 27 hours in pure water under visible light. In addition, nanocrystals can generate 24.4mmol/g of hydrogen after 8 hours without any metal co-catalyst. |
