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Frontiers of Optoelectronics

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Front. Optoelectron.    2022, Vol. 15 Issue (3) : 38    https://doi.org/10.1007/s12200-022-00032-5
REVIEW ARTICLE
Highly stable β-ketoenamine-based covalent organic frameworks (COFs): synthesis and optoelectrical applications
Yaqin Li1,2, Maosong Liu1, Jinjun Wu2, Junbo Li1,2, Xianglin Yu1(), Qichun Zhang3,4()
1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430074, China
2. School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, China
3. Department of Materials Science and Engineering, City University of Hongkong, Hong Kong SAR 999077, China
4. Center of Super-Diamond and Advanced Films (COSDAF), City University of Hongkong, Hong Kong SAR 999077, China
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Abstract

Covalent organic frameworks (COFs) are one class of porous materials with permanent porosity and regular channels, and have a covalent bond structure. Due to their interesting characteristics, COFs have exhibited diverse potential applications in many fields. However, some applications require the frameworks to possess high structural stability, excellent crystallinity, and suitable pore size. COFs based on β-ketoenamine and imines are prepared through the irreversible enol-to-keto tautomerization. These materials have high crystallinity and exhibit high stability in boiling water, with strong resistance to acids and bases, resulting in various possible applications. In this review, we first summarize the preparation methods for COFs based on β-ketoenamine, in the form of powders, films and foams. Then, the effects of different synthetic methods on the crystallinity and pore structure of COFs based on β-ketoenamine are analyzed and compared. The relationship between structures and different applications including fluorescence sensors, energy storage, photocatalysis, electrocatalysis, batteries and proton conduction are carefully summarized. Finally, the potential applications, large-scale industrial preparation and challenges in the future are presented.
Keywords Covalent organic frameworks      β-ketoenamine      Sensors      Energy storage      Batteries      Photocatalysis     
Corresponding Author(s): Xianglin Yu,Qichun Zhang   
Issue Date: 26 October 2022
 Cite this article:   
Yaqin Li,Maosong Liu,Jinjun Wu, et al. Highly stable β-ketoenamine-based covalent organic frameworks (COFs): synthesis and optoelectrical applications[J]. Front. Optoelectron., 2022, 15(3): 38.
 URL:  
https://academic.hep.com.cn/foe/EN/10.1007/s12200-022-00032-5
https://academic.hep.com.cn/foe/EN/Y2022/V15/I3/38
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