Jung, Dan Bee Song, Younghan Lee, Yu-Ri Cha, Min Jun Jeong, Keunhong Choi, Jungkyu Na, Jongbeom Seo, Jin Young Baek, Kyung-Youl 2024-09-19T01:00:09Z 2024-09-19T01:00:09Z 2024-09-19 2025-01 0144-8617 https://pubs.kist.re.kr/handle/201004/150608 Chemical upcycling of CO2, a major greenhouse gas, is attracting significant attention as a crucial strategy to combat global warming. The production of cyclic carbonate using metal-organic frameworks and their composites using nanofibrous carbohydrate polymer are promising ways to convert CO2 into valuable products. However, the current role of fibrous polymers is restricted to serving as physical substrates. This study seeks to expand the functionality of quaternarized chitosan nanofibers into synergistic catalysts in addition to their physical support role. A novel aerogel composite using Co/Zn-ZIF catalyst and quaternarized chitosan nanofiber (Q-CsNF+) was fabricated, and its hierarchical pore structure was extensively discussed. The obtained ZIF/QCsNF+ composite can synergistically convert epoxide to cyclic carbonate by acting as a co-catalyst. Moreover, we determined the predominant factors influencing catalytic activity in CO2 cycloaddition, especially by examining the interplay between CO2 affinity and co-catalyst effects. This research provides fundamental insight into developing CO2 cycloaddition catalysts using nature-derived fibrous polymers, opening new avenues for sustainable and efficient CO2 utilization. English Pergamon Press Ltd. Quaternarized chitosan nanofiber and ZIF aerogel composites for synergetic CO2 cycloaddition catalysis Article 10.1016/j.carbpol.2024.122685 1 Carbohydrate Polymers, v.347 Carbohydrate Polymers 347 N scie scopus 001308995300001 2-s2.0-85203200097 Chemistry, Applied Chemistry, Organic Polymer Science Chemistry Polymer Science Article METAL-ORGANIC FRAMEWORK CARBON-DIOXIDE CHEMICAL FIXATION CAPTURE CONVERSION EPOXIDES MECHANISM STORAGE UIO-66 Carbon dioxide Quaternarized chitosan nanofiber Catalysis Cyclic carbonate And composites