Rationally Designed Cyclooctatetrathiophene-Based Porous Aromatic Frameworks (COTh-PAFs) for Efficient Photocatalytic Hydrogen Peroxide Production
© 2024 Wiley‐VCH GmbH..
Constructing stable and efficient photocatalysts for H2O2 production is of great importance and is challenging. In this study, the synthesis of three photoactive cyclooctatetrathiophene (COTh)-based porous aromatic frameworks (COTh-PAFs) in an alternating donor-acceptor (D-A) fashion is presented. In combination with a triazine-derived electron acceptor, PAF-363 exhibits high efficiency for the photosynthesis of H2O2 with production rates of 11733 μmol g-1 h-1(with sacrificial agent) and 3930 μmol g-1 h-1 (without sacrificial agent) from water and oxygen under visible light irradiation. Experimental results and theoretical calculations reveal that the charge transfer positions and the O2 adsorption sites in PAF-363 are both concentrated on COTh fragments, which facilitate the H2O2 production through the oxygen reduction reaction (ORR) pathway. This work highlights that the rational design of COTh-PAFs with consideration of D-A direction, charge transfer positions, and O2 adsorption sites provides a feasible access to efficient H2O2 production photocatalysts.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:63 |
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| Enthalten in: |
Angewandte Chemie (International ed. in English) - 63(2024), 18 vom: 24. Apr., Seite e202402095 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cao, Linzhu [VerfasserIn] |
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| Links: |
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| Themen: |
Donor-acceptor direction |
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| Anmerkungen: |
Date Revised 18.04.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1002/anie.202402095 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369406656 |
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| 520 | |a Constructing stable and efficient photocatalysts for H2O2 production is of great importance and is challenging. In this study, the synthesis of three photoactive cyclooctatetrathiophene (COTh)-based porous aromatic frameworks (COTh-PAFs) in an alternating donor-acceptor (D-A) fashion is presented. In combination with a triazine-derived electron acceptor, PAF-363 exhibits high efficiency for the photosynthesis of H2O2 with production rates of 11733 μmol g-1 h-1(with sacrificial agent) and 3930 μmol g-1 h-1 (without sacrificial agent) from water and oxygen under visible light irradiation. Experimental results and theoretical calculations reveal that the charge transfer positions and the O2 adsorption sites in PAF-363 are both concentrated on COTh fragments, which facilitate the H2O2 production through the oxygen reduction reaction (ORR) pathway. This work highlights that the rational design of COTh-PAFs with consideration of D-A direction, charge transfer positions, and O2 adsorption sites provides a feasible access to efficient H2O2 production photocatalysts | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Donor-acceptor direction | |
| 650 | 4 | |a H2O2 production | |
| 650 | 4 | |a Oxygen reduction reaction | |
| 650 | 4 | |a Photocatalysis | |
| 650 | 4 | |a Porous aromatic frameworks | |
| 700 | 1 | |a Wang, Cong |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, He |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Xinmeng |e verfasserin |4 aut | |
| 700 | 1 | |a Tao, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Tan, Huaqiao |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Guangshan |e verfasserin |4 aut | |
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