Uniform Core-Shell Microspheres of SiO2@MOF for CO2Cycloaddition Reactions

Chen Yen Tsai*, Yi Hsuan Chen, Szetsen Lee, Chia Her Lin, Chu Han Chang, Wan Ting Dai, Wan Ling Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A SiO2@MOF core-shell microsphere for environmentally friendly applications was introduced in this study. Several types of metal-organic framework core-shell microspheres were successfully synthesized. To achieve high stability and favorable catalytic performance, modification and coating methods were necessary for optimization. The improved SiO2@MOF core-shell microspheres were used in the cycloaddition reaction of carbon dioxide and propylene oxide. Dispersion ability was enhanced by the addition of core-shell microspheres, which also produced high catalytic activity. Accompanied with tetrabutylammonium bromide as a co-catalyst, SiO2@ZIF-67 had a maximum conversion of 97%, and the results revealed that SiO2@ZIF-67 could be used for 5 reaction cycles while maintaining high catalytic performance. This recycling catalyst was also reacted with a series of terminal epoxides to form corresponding cyclic carbonates with high conversion rates, indicating that SiO2@MOF core-shell microspheres exhibit promise in the field of catalysis.

Original languageEnglish
Pages (from-to)2724-2732
Number of pages9
JournalInorganic Chemistry
Issue number6
Publication statusPublished - 2022 Feb 14


  • catalysts
  • core-shell microspheres
  • cyclic carbonates
  • cycloaddition reaction
  • metal-organic framework

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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