Zhao, Wei ORCID: 0000-0003-0265-2590, Yan, Peiyao, Li, Boyu, Bahri, Mounib ORCID: 0000-0002-8336-9158, Liu, Lunjie, Zhou, Xiang, Clowes, Rob, Browning, Nigel D ORCID: 0000-0003-0491-251X, Wu, Yue, Ward, John W ORCID: 0000-0001-7186-6416 et al (show 1 more authors)
(2022)
Accelerated Synthesis and Discovery of Covalent Organic Framework Photocatalysts for Hydrogen Peroxide Production.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 144 (22).
pp. 9902-9909.
Text
Accelerated Synthesis and Discovery of Covalent Organic Framework Photocatalysts for Hydrogen Peroxide Production.pdf - Published version Download (5MB) | Preview |
Abstract
A high-throughput sonochemical synthesis and testing strategy was developed to discover covalent organic frameworks (COFs) for photocatalysis. In total, 76 conjugated polymers were synthesized, including 60 crystalline COFs of which 18 were previously unreported. These COFs were then screened for photocatalytic hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production using water and oxygen. One of these COFs, sonoCOF-F2, was found to be an excellent photocatalyst for photocatalytic H<sub>2</sub>O<sub>2</sub> production even in the absence of sacrificial donors. However, after long-term photocatalytic tests (96 h), the imine sonoCOF-F2 transformed into an amide-linked COF with reduced crystallinity and loss of electronic conjugation, decreasing the photocatalytic activity. When benzyl alcohol was introduced to form a two-phase catalytic system, the photostability of sonoCOF-F2 was greatly enhanced, leading to stable H<sub>2</sub>O<sub>2</sub> production for at least 1 week.
Item Type: | Article |
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Uncontrolled Keywords: | 7 Affordable and Clean Energy |
Divisions: | Faculty of Science and Engineering > School of Engineering Faculty of Science and Engineering > School of Physical Sciences |
Depositing User: | Symplectic Admin |
Date Deposited: | 07 Jul 2022 11:55 |
Last Modified: | 15 Mar 2024 13:43 |
DOI: | 10.1021/jacs.2c02666 |
Open Access URL: | https://doi.org/10.1021/jacs.2c02666 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3157943 |