Facile functionalization iron in zeolitic imidazole framework-67 under solvent-free conditions for enhancing CO<inf>2</inf> fixation reaction
Issued Date
2024-07-01
Resource Type
ISSN
13871811
Scopus ID
2-s2.0-85192162621
Journal Title
Microporous and Mesoporous Materials
Volume
375
Rights Holder(s)
SCOPUS
Bibliographic Citation
Microporous and Mesoporous Materials Vol.375 (2024)
Suggested Citation
Ma D., Cheng Z., Yuan Y., Chaemchuen S. Facile functionalization iron in zeolitic imidazole framework-67 under solvent-free conditions for enhancing CO<inf>2</inf> fixation reaction. Microporous and Mesoporous Materials Vol.375 (2024). doi:10.1016/j.micromeso.2024.113161 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/98305
Title
Facile functionalization iron in zeolitic imidazole framework-67 under solvent-free conditions for enhancing CO<inf>2</inf> fixation reaction
Author(s)
Corresponding Author(s)
Other Contributor(s)
Abstract
The heterometal functionalization on zeolitic-imidazole frameworks (ZIFs) is a strategy to modify properties over the homometal ZIFs. A green strategy for simultaneously functionalized iron atoms during the crystal formation of ZIF-67 (Fe@ZIF-67) through the solid-solid thermal (SST) method is newly developed. The single-step process and absent solvent conditions are beneficial advantages of this SST method over the early reported synthetic methods. The results show that the iron is well-dispersed and homogeneously coordinated in the structure of Fe@ZIF-67. Moreover, the optimal iron-functionalized ZIF-67 (20Fe@ZIF-67) significantly enhances the catalytic performance of CO2 cycloaddition epoxide by 2.3 times compared to pristine ZIF-67 under mild reaction conditions. The DFT calculation reveals that the iron atom induces the unsaturated sites or defect structure on the Fe@ZIF-67 catalyst, providing more reactive sites for the catalytic activity of the reaction.