Design and Synthesis of Cycloplatinated Polymer Dots as Photocatalysts for Visible-Light-Driven Hydrogen Evolution
| Autor: | Yang-Hsiang Chan, Ming Li Tsai, Chia Hsien Liao, Pei Yu Chen, Chih-Li Chang, Po Jung Tseng, Li Yu Ting, Ho-Hsiu Chou |
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| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Materials science Hydrogen Comonomer chemistry.chemical_element 02 engineering and technology General Chemistry Polymer Conjugated system 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound Polymerization chemistry Chemical engineering Covalent bond 0210 nano-technology Visible spectrum |
| Zdroj: | ACS Catalysis. 8:7766-7772 |
| ISSN: | 2155-5435 |
| Popis: | By mimicking natural photosynthesis, generating hydrogen through visible-light-driven splitting of water would be an almost ideal process for converting abundant solar energy into a usable fuel in an environmentally friendly and high-energy-density manner. In a search for efficient photocatalysts that mimic such a function, here we describe a series of cycloplatinated polymer dots (Pdots), in which the platinum complex unit is presynthesized as a comonomer and then covalently linked to a conjugated polymer backbone through Suzuki–Miyaura cross-coupling polymerization. On the basis of our design strategy, the hydrogen evolution rate (HER) of the cycloplatinated Pdots can be enhanced by 12 times in comparison to that of pristine Pdots under otherwise identical conditions. In comparison to the Pt-complex-blended counterpart Pdots, the HER of cycloplatinated Pdots is over 2 times higher than that of physically blended Pdots. Furthermore, enhancement of the photocatalytic reaction time with high eventual hydro... |
| Databáze: | OpenAIRE |
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