Karatayeva Ulzhalgas, Al Siyabi Safa Ali, Brahma Narzary Basiram, Baker Benjamin C, Faul Charl F J
School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.
Adv Sci (Weinh). 2024 Apr;11(14):e2308228. doi: 10.1002/advs.202308228. Epub 2024 Feb 7.
Rising carbon dioxide (CO) levels in the atmosphere are recognized as a threat to atmospheric stability and life. Although this greenhouse gas is being produced on a large scale, there are solutions to reduction and indeed utilization of the gas. Many of these solutions involve costly or unstable technologies, such as air-sensitive metal-organic frameworks (MOFs) for CO capture or "non-green" systems such as amine scrubbing. Conjugated microporous polymers (CMPs) represent a simpler, cheaper, and greener solution to CO capture and utilization. They are often easy to synthesize at scale (a one pot reaction in many cases), chemically and thermally stable (especially in comparison with their MOF and covalent organic framework (COF) counterparts, owing to their amorphous nature), and, as a result, cheap to manufacture. Furthermore, their large surface areas, tunable porous frameworks and chemical structures mean they are reported as highly efficient CO capture motifs. In addition, they provide a dual pathway to utilize captured CO via chemical conversion or electrochemical reduction into industrially valuable products. Recent studies show that all these attractive properties can be realized in metal-free CMPs, presenting a truly green option. The promising results in these two fields of CMP applications are reviewed and explored here.
大气中二氧化碳（CO）水平的上升被认为是对大气稳定性和生命的一种威胁。尽管这种温室气体正在大规模产生，但存在减少甚至利用该气体的解决方案。其中许多解决方案涉及成本高昂或不稳定的技术，例如用于捕获CO的对空气敏感的金属有机框架（MOF）或诸如胺洗涤之类的“非绿色”系统。共轭微孔聚合物（CMP）代表了一种更简单、更便宜且更环保的CO捕获和利用解决方案。它们通常易于大规模合成（在许多情况下为一锅法反应），具有化学和热稳定性（特别是与它们的MOF和共价有机框架（COF）对应物相比，由于其无定形性质），因此制造成本低廉。此外，它们的大表面积、可调谐的多孔框架和化学结构意味着它们被报道为高效的CO捕获基序。此外，它们提供了一条双重途径，可通过化学转化或电化学还原将捕获的CO转化为具有工业价值的产品。最近的研究表明，所有这些吸引人的特性都可以在无金属的CMP中实现，这是一种真正的绿色选择。本文将对CMP应用这两个领域中取得的有前景的结果进行综述和探讨。
