A dehydrobenzoannulene-based three dimensional graphdiyne for photocatalytic hydrogen generation using Pt nanoparticles as a co-catalyst and triethanolamine as a sacrificial electron donor
| Autor: | Yongjun Li, Han Shen, Weixiang Zhou, Yanan Gu, Yuliang Li, Feng He |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Renewable Energy Sustainability and the Environment Alkyne chemistry.chemical_element Electron donor 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Triple bond 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Chemical engineering Photocatalysis Water splitting General Materials Science 0210 nano-technology Carbon Hydrogen production |
| Zdroj: | Journal of Materials Chemistry A. 8:4850-4855 |
| ISSN: | 2050-7496 2050-7488 |
| DOI: | 10.1039/c9ta14047f |
| Popis: | The major advantage of alkyne chemistry, the chemical tailorability of the alkyne triple bond, ensures synthetic control over the electronic and chemical structure of graphdiyne. The three dimensional arrangement of alkyne units provides a very wide space for chemical derivation of graphdiyne, which would promote the development of new kinds of carbon materials with a clear structure, high activity and stability. Herein, we would like to report the synthesis and self-assembly of a crystalline dehydrobenzoannulene-based three dimensional graphdiyne, PDBA, with the above-mentioned perfect characteristics. A typical helical fiber-like structure was formed by polymerization-induced self-assembly, which exhibits good ability for water splitting with a photocatalytic H2 generation rate of 340 μmol h−1 g−1 and an apparent quantum efficiency of 4.68% at 420 nm. This discovery paves a new way for developing functionally oriented carbon materials through controlling the dimensionality and shape of alkynes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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