PCN-222(Co) Metal–Organic Framework Nanorods Coated with 2D Metal–Organic Layers for the Catalytic Fixation of CO2 to Cyclic Carbonates,ACS Applied Nano Materials

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PCN-222(Co) Metal–Organic Framework Nanorods Coated with 2D Metal–Organic Layers for the Catalytic Fixation of CO2 to Cyclic Carbonates
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-03-24 , DOI: 10.1021/acsanm.0c00305
Enqing Liu ₁ , Jiangping Zhu ₁ , Weijun Yang ₁ , Fan Liu ₁ , Can Huang ₁ , Shuangfeng Yin ₁

Affiliation

In this work, a functionalized metal–organic layer (MTTB MOL) was first synthesized and characterized, where MTTB means that it was synthesized from TTB (4,4′,4″-s-triazine-2,4,6-triyl-tribenzoate). On this basis, a hybrid metal–organic framework of PCN-222(Co)@MTTB was further synthesized by combining two-dimensional (2D) MTTB MOLs and three-dimensional (3D) PCN-222(Co) MOFs (metal–organic frameworks) via a one-step method. When applied to the cycloaddition reaction of carbon dioxide (CO₂) and epoxides, PCN-222(Co)@MTTB was found to exhibit excellent synergistic catalytic performance under mild conditions. The unique catalytic activity of the composite is due to the combination of the exposed acidic sites (Co²⁺, Zr⁴⁺) and basic sites (−N– groups) within the matrix of the MOF structure, thereby providing a new method for the exploration of effective catalysts for the conversion of CO₂ to value-added chemicals under mild conditions.

中文翻译：

PCN-222（Co）金属有机骨架纳米棒涂有二维金属有机层，用于将CO ₂催化固定到环状碳酸酯

在这项工作中，首先合成并表征了功能化的金属有机层（MTTB MOL），其中MTTB表示它是由TTB（4,4'，4''-s-triazine-2,4,6-triyl-三苯甲酸酯）。在此基础上，通过组合二维（2D）MTTB MOL和三维（3D）PCN-222（Co）MOF（金属-有机），进一步合成了PCN-222（Co）@MTTB的金属-有机杂化骨架。框架）。当将其应用于二氧化碳（CO ₂）和环氧化物的环加成反应时，发现PCN-222（Co）@MTTB在温和条件下显示出优异的协同催化性能。复合材料独特的催化活性是由于暴露的酸性位点（Co 2 ⁺，Zr ⁴⁺）和MOF结构矩阵中的碱性位点（-N–基团），从而为探索在温和条件下将CO ₂转化为增值化学品的有效催化剂提供了一种新方法。

更新日期：2020-03-24

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