Multiscale Covalent Organic Framework (COF) Films for Task-Specific Sensing in Multicomponent Gases

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2024-11-18 DOI:10.1021/acsmaterialslett.4c0167210.1021/acsmaterialslett.4c01672

Chengyue Yu, Lingyun Xu, Fanrong Zhao, Lei Kong, Yupeng Chen*, Lifang Li*, Zhongpeng Zhu* and Lei Jiang,

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Abstract

Gas sensing is vital for ecological protection in agriculture, early disease diagnosis in biomedicine, and safety in industrial production. Covalent organic frameworks (COFs), a new class of porous polymer materials, can be customized through specific ligand selection to tailor pore sizes and active sites, enabling them to selectively enrich and interact with targeted gas molecules, making them promising candidates for gas sensing. To advance their use in this field, it is essential to investigate the mechanisms of the complex interactions between COFs and target molecules as well as to improve COF film fabrication methods. This review outlines design strategies for COF films across multiscale: molecular interaction mechanisms, macroscopic interfacial synthesis methods, and microscale/nanoscale approaches such as double-layer films for filtration and micro/nanostructured films for improved gas transfer. Finally, several key research directions are proposed to improve the suitability of COF-based materials for gas sensing in complex environments.

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多尺度共价有机框架（COF）薄膜用于多组分气体的任务特异性传感

气敏技术在农业生态保护、生物医学疾病早期诊断、工业生产安全等方面具有重要意义。共价有机框架（COFs）是一种新型的多孔聚合物材料，可以通过特定的配体选择来定制孔径和活性位点，使它们能够选择性地富集和与目标气体分子相互作用，使其成为气体传感的有希望的候选者。为了进一步推进其在这一领域的应用，有必要研究COFs与靶分子之间复杂相互作用的机制，并改进COF薄膜的制备方法。本文概述了多尺度COF膜的设计策略：分子相互作用机制，宏观界面合成方法，微/纳米尺度的方法，如过滤双层膜和改善气体传递的微/纳米结构膜。最后，提出了提高cof基材料在复杂环境下气敏适用性的几个重点研究方向。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.