journal article Jan 18, 2023

Benzotrithiophene‐based Covalent Organic Framework Photocatalysts with Controlled Conjugation of Building Blocks for Charge Stabilization

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Abstract
AbstractCovalent organic frameworks have recently shown high potential for photocatalytic hydrogen production. However, their structure‐property‐activity relationship has not been sufficiently explored to identify a research direction for structural design. Herein, we report the design and synthesis of four benzotrithiophene (BTT)‐based covalent organic frameworks (COFs) with different conjugations of building units, and their photocatalytic activity for hydrogen production. All four BTT‐COFs had slipped parallel stacking patterns with high crystallinity and specific surface areas. The change in the degree of conjugation was found to rationally tune the rate of photocatalytic hydrogen evolution. Based on the experimental and calculation results, the tunable photocatalytic performance could be mainly attributed to the electron affinity and charge trapping of the electron accepting units. This study provides important insights for designing covalent organic frameworks for efficient photocatalysts.
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References
Details
Published
Jan 18, 2023
Vol/Issue
62(12)
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Funding
National Research Foundation of Korea Award: 2014R1A3A2069102
Ulsan National Institute of Science and Technology Award: 1.200096.01
Korea Institute of Science and Technology Information Award: KSC-2021-CRE-0539
Cite This Article
Jong‐Pil Jeon, Yu Jin Kim, Se Hun Joo, et al. (2023). Benzotrithiophene‐based Covalent Organic Framework Photocatalysts with Controlled Conjugation of Building Blocks for Charge Stabilization. Angewandte Chemie International Edition, 62(12). https://doi.org/10.1002/anie.202217416
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