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引用次数: 0
摘要
我们综合了金属有机框架（MOFs）和离子有机聚合物（iCOPs）的优点，通过在 NH2-UiO-66 上生长不同厚度的 iCOP 壳层，制备了一系列新型混合材料（核壳 M@iCOPs）。这些由 NH2-UiO-66 作为嵌入式 "吸附引擎 "的 M@iCOP 混合物表现出更丰富的孔道，再加上 iCOPs 壳层中的富氮结构和 π-π 堆叠相互作用，使其在 0 °C 和 1 bar 条件下对 CO2 的吸附能力显著增强，最高可达 3.33 mmol-g-1。值得注意的是，M@iCOPs-400 具有丰富的离子和路易斯酸位点，通过界面协同效应，它在较温和条件下的 CO2 转化过程中表现出卓越的性能，能以 90-99% 的产率获得各种环状碳酸盐。总之，这项研究为构建核壳 M@iCOP 材料提供了一种简单、经济的方法。
Core–shell NH2-UiO-66@iCOPs with built-in “adsorption engines” for improving CO2 adsorption and conversion
Integrating the advantages of metal–organic framework (MOFs) and ionic organic polymers (iCOPs), we fabricated a series of novel hybrid materials (core–shell M@iCOPs) by growing iCOP shell layers of varying thicknesses on the NH2-UiO-66. These M@iCOP hybrids, with NH2-UiO-66 serving as an embedded “adsorption engine,” exhibit richer pore channels, which combined with the nitrogen-rich structure and π-π stacking interactions in the shell layer of the iCOPs, which led to a significant enhancement of CO2 adsorption with up to 3.33 mmol·g−1 at 0 °C and 1 bar. Remarkably, M@iCOPs-400, which possesses abundant ionic and Lewis acid sites, demonstrates excellent performance in CO2 conversion under milder conditions through interfacial synergistic effect, affording various cyclic carbonates in 90–99% yields. Overall, this research provides a straightforward and cost-effective approach for constructing core–shell M@iCOP materials.
期刊介绍：
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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