Abstract
Epoxidation is an important chemical process for the production of epoxides, key building blocks in chemical industry. Despite great effort s being made to facilitate this process, it remains a significant challenge to develop cost-effective, environmental-friendly, and selective catalysts. Herein, we reported a highly dispersed Mn supported by g-C 3 N 4 (Mn/g-C 3 N 4 ) with Mn loading up to 2.56 wt%. The Mn/g-C 3 N 4 exhibited satisfied catalytic performance for olefin epoxidation with excellent conversion (91%), high selectivity (93%) as well as outstanding recycling stability. Further analysis revealed the importance of Mn-N structure for the generation of active oxo-containing species and subsequent oxygen atom transfer. Besides, an efficient synthesis of cyclic carbonates from styrene epoxide and CO 2 has been achieved (88% conversion, 89% selectivity) based on the polar Mn-N coordinated characteristics of Mn/g-C 3 N 4 catalyst. & COPY; 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
Keywords Plus：METAL-ORGANIC FRAMEWORKSHETEROGENEOUS CATALYSTSHYDROGEN-PEROXIDEOXYGENPERFORMANCEPROPYLENECOMPLEXESGRAPHENEALKENES
Published in CHINESE CHEMICAL LETTERS，Volume34，10.1016/j.cclet.2023.108269；DEC 2023