Green Chemistry Network Centre, Department of Chemistry, University of Delhi, Delhi, 110007, India.
Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacký University Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic.
Sci Rep. 2018 Jan 30;8(1):1901. doi: 10.1038/s41598-018-19551-3.
In the last few decades, the emission of carbon dioxide (CO) in the environment has caused havoc across the globe. One of the most promising strategies for fixation of CO is the cycloaddition reaction between epoxides and CO to produce cyclic carbonates. For the first time, we have fabricated copper-based magnetic nanocatalyst and have applied for the CO fixation. The prepared catalyst was thoroughly characterized using various techniques including XRD, FT-IR, TEM, FE-SEM, XPS, VSM, ICP-OES and elemental mapping. The reactions proceeded at atmospheric pressure, relatively lower temperature, short reaction time, solvent- less and organic halide free reaction conditions. Additionally, the ease of recovery through an external magnet, reusability of the catalyst and excellent yields of the obtained cyclic carbonates make the present protocol practical and sustainable.
在过去的几十年中，环境中二氧化碳（CO）的排放对全球造成了严重破坏。固定 CO 的最有前途的策略之一是环氧化物和 CO 之间的环加成反应，以生成环状碳酸酯。我们首次制造了基于铜的磁性纳米催化剂，并已将其用于 CO 固定。使用各种技术（包括 XRD、FT-IR、TEM、FE-SEM、XPS、VSM、ICP-OES 和元素映射）对制备的催化剂进行了彻底的表征。反应在常压、较低温度、较短反应时间、无溶剂和无有机卤化物的反应条件下进行。此外，通过外部磁铁易于回收、催化剂的可重复使用性以及获得的环状碳酸酯的优异产率使本方案具有实际和可持续性。
