Novel vinylene-bridged covalent organic framework based on diketopyrrolopyrrole with exceptional photothermal properties

IF 9.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chinese Chemical Letters Pub Date : 2025-03-03 DOI:10.1016/j.cclet.2025.111028

Tianwen Chen , Chunqiang Cai , Li Chen , Yanlin Chen , Lichun Dong , Luxi Tan , Zitong Liu

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引用次数: 0

Abstract

Vinylene-bridged covalent organic frameworks (V-COFs), as fully conjugated polymer structures, offer promising prospects in optoelectronics. However, challenges such as poor bond reversibility and limited monomer availability persist. In this study, we introduce Ph-DPP-COF, synthesized from a diketopyrrolopyrrole (DPP) core with methyl groups via a Knoevenagel condensation reaction. The resulting material features an AA stacking mode, large nanopores, and broad light absorption across the ultraviolet to near-infrared spectrum. Notably, Ph-DPP-COF achieves a photothermal conversion efficiency of 53 % under 660 nm laser irradiation. Its exceptional mechanical processability also offers considerable plasticity for practical applications. These findings suggest that Ph-DPP-COF not only provides a novel approach for developing photothermal conversion materials but also holds promise for future energy conversion and storage technologies.

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基于二酮吡咯的新型乙烯桥共价有机骨架具有优异的光热性能

乙烯桥联共价有机框架（V-COFs）作为一种全共轭聚合物结构，在光电子学领域具有广阔的应用前景。然而，诸如较差的键可逆性和有限的单体可用性等挑战仍然存在。本研究以二酮吡咯（DPP）为核心，通过Knoevenagel缩合反应合成了Ph-DPP-COF。由此产生的材料具有AA堆叠模式，大纳米孔，以及在紫外到近红外光谱上广泛的光吸收。值得注意的是，Ph-DPP-COF在660 nm激光照射下的光热转换效率为53 %。其卓越的机械加工性也为实际应用提供了相当大的可塑性。这些发现表明，Ph-DPP-COF不仅为开发光热转换材料提供了一种新的途径，而且对未来的能量转换和存储技术也有希望。

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来源期刊

Chinese Chemical Letters 化学-化学综合

CiteScore

14.10

自引率

15.40%

发文量

8969

审稿时长

1.6 months

期刊介绍： Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.