One-pot catalysis of olefins and CO₂ provides an economical and energy-efficient way for the fixation of CO₂ and the production of cyclic carbonates. In this work, a two-dimensional Co-1,4-benzenedicarboxylate MOF (2D CoBDC) was synthesized via a facile solvothermal reflux method and further examined in the one-pot synthesis of cyclic carbonates. The results of activity evaluations and detailed kinetics showed that 2D CoBDC exhibited enhanced catalytic performance (92% of styrene conversion and 85% of styrene carbonate yield) under cocatalyst-free conditions of 100 °C, 1 bar, and 12 h, compared with the 3D counterpart. The results from effectiveness factors and Thiele modulus revealed the full utilization and negligible mass transfer limitations of the 2D CoBDC catalyst. A further recycle experiment confirmed the excellent reusability of 2D CoBDC with little loss in catalytic activity after at least 5 runs. Finally, a possible mechanism of the one-pot reaction catalyzed by 2D CoBDC was proposed.

中文翻译：

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用于烯烃和二氧化碳一锅法合成环状碳酸酯的二维钴基金属有机骨架纳米片

_{烯烃和CO 2}的一锅催化为CO ₂的固定和环状碳酸酯的生产提供了一种经济且节能的途径。在这项工作中，通过简单的溶剂热回流方法合成了二维Co-1,4-苯二甲酸酯MOF（2D CoBDC），并在环状碳酸酯的一锅合成中进行了进一步研究。活性评估和详细动力学结果表明，2D CoBDC 在 100 °C、1 bar 和 12 h 的无助催化剂条件下表现出增强的催化性能（苯乙烯转化率为 92%，碳酸苯乙烯产率为 85%）。 3D 对应物。有效性因子和蒂勒模量的结果揭示了 2D CoBDC 催化剂的充分利用和可忽略的传质限制。进一步的回收实验证实了 2D CoBDC 具有出色的可重复使用性，在至少 5 次运行后催化活性几乎没有损失。最后，提出了2D CoBDC催化一锅反应的可能机制。