Backbone engineering and side group manipulation in covalent organic frameworks for overall solar-driven hydrogen peroxide production

IF 5.4 1区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
GIANT Pub Date : 2024-08-20 DOI:10.1016/j.giant.2024.100335
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引用次数: 0

Abstract

Covalent Organic Frameworks (COFs) have emerged as highly promising materials for the photocatalytic production of hydrogen peroxide (H2O2) due to their exceptional structural tunability, robust frameworks, and high porosity. The efficient overall photosynthesis of H2O2 hinges on the simultaneous occurrence of the oxygen reduction reaction (ORR) and water oxidation reaction (WOR). This review introduces recent progress in developing key approaches such as backbone engineering and the incorporation of side groups to facilitate these critical reaction pathways. For example, innovative COF designs, such as spatially separating redox centers, have demonstrated significant improvements in photocatalytic performance. Moreover, the introduction of thioether-decorated triazine-based COFs and hexavalent triphenylene knots has led to remarkable H2O2 production rates. Furthermore, this review also addresses the challenges associated with the practical implementation of COFs, including their stability under operational conditions and the necessity for innovative reactor designs. The future prospects of COFs in sustainable chemical synthesis are also discussed, emphasizing their potential for COFs to revolutionize H2O2 production through green and sustainable methodologies. This review aims to provide valuable insights into the design and development of high-performance COF photocatalysts, paving the way for their practical applications in the sustainable production of value-added chemicals.

Abstract Image

共价有机框架中的骨架工程和侧基操作,用于太阳能驱动的过氧化氢整体生产
共价有机框架(COFs)因其卓越的结构可调性、坚固的框架和高孔隙率,已成为极具前景的光催化生产过氧化氢(H2O2)的材料。H2O2 的高效整体光合作用取决于氧还原反应(ORR)和水氧化反应(WOR)的同时发生。本综述介绍了在开发骨架工程和加入侧基等关键方法以促进这些关键反应途径方面的最新进展。例如,创新的 COF 设计(如在空间上分离氧化还原中心)已在光催化性能方面取得显著改善。此外,硫醚装饰的三嗪基 COF 和六价三苯结的引入也带来了显著的 H2O2 产率。此外,本综述还探讨了与 COFs 实际应用相关的挑战,包括 COFs 在操作条件下的稳定性以及创新反应器设计的必要性。还讨论了 COFs 在可持续化学合成中的未来前景,强调 COFs 通过绿色和可持续方法彻底改变 H2O2 生产的潜力。本综述旨在为高性能 COF 光催化剂的设计和开发提供有价值的见解,为其在可持续生产高附加值化学品方面的实际应用铺平道路。
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来源期刊
GIANT
GIANT Multiple-
CiteScore
8.50
自引率
8.60%
发文量
46
审稿时长
42 days
期刊介绍: Giant is an interdisciplinary title focusing on fundamental and applied macromolecular science spanning all chemistry, physics, biology, and materials aspects of the field in the broadest sense. Key areas covered include macromolecular chemistry, supramolecular assembly, multiscale and multifunctional materials, organic-inorganic hybrid materials, biophysics, biomimetics and surface science. Core topics range from developments in synthesis, characterisation and assembly towards creating uniformly sized precision macromolecules with tailored properties, to the design and assembly of nanostructured materials in multiple dimensions, and further to the study of smart or living designer materials with tuneable multiscale properties.
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