Gold plasmon-induced photocatalytic dehydrogenative coupling of methane to ethane on polar oxide surfaces
| Autor: | Rusheng Yuan, Xinchen Wang, Sha He, Yidong Hou, Xuxu Wang, Lingshu Meng, Jinlin Long, Zhenye Chen, Hao-Hong Li, Xi-He Huang, Zhiyun Ma |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Hydrogen Renewable Energy Sustainability and the Environment Energy conversion efficiency Oxide chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Resonance (chemistry) Photochemistry 01 natural sciences Pollution Methane 0104 chemical sciences chemistry.chemical_compound Nuclear Energy and Engineering chemistry Environmental Chemistry Charge carrier Astrophysics::Earth and Planetary Astrophysics Physics::Chemical Physics 0210 nano-technology Plasmon Stoichiometry |
| Zdroj: | Energy & Environmental Science. 11:294-298 |
| ISSN: | 1754-5706 1754-5692 |
| DOI: | 10.1039/c7ee02951a |
| Popis: | This work shows the solar-driven dehydrogenative coupling of methane to ethane at room temperature. A solar-to-C2H6 energy conversion efficiency of 0.08% was achieved on the polar surface of Au/ZnO porous nanosheets (NSs), where methane C–H bonds are polarized and dissociated by the local electric field normal to the polar {001} plane, and finally converted into ethane and hydrogen through a radical coupling pathway. Mechanistic studies suggest that the Au-plasmon-induced resonance energy transfer modulates charge carrier energetics to trigger the stoichiometric conversion. Hot electrons reduce protons to H2, which is the rate-determining step of methane coupling. |
| Databáze: | OpenAIRE |
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