Straightforward synthesis of MTW-type magnesium silicalite for CO2 fixation with epoxides under mild conditions

Haimeng Wen, Jingyan Xie, Yang Zhou, Yu Zhou, Jun Wang

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Aluminum-free magnesium silicalite with MTW topology (Mg-Si-ZSM-12) was fabricated via a straightforward hydrothermal synthesis route involving an initial acid co-hydrolysis step. Mg incorporation endowed superior basic properties to the MTW framework, as illustrated by CO2 sorption and temperature programmed desorption plus the activity in a typical basic reaction, Knoevenagel condensation. Mg-Si-ZSM-12 catalyzed the coupling of atmospheric CO2 with epoxides and led to the efficient production of cyclic carbonates with high yield and selectivity at relatively low temperature (down to 60 °C). The present strategy afforded a zeolitic solid base with regular 12-membered ring microporous channels that has potential application in CO2 fixation.

Original languageEnglish
Pages (from-to)5725-5735
Number of pages11
JournalCatalysis Science and Technology
Volume9
Issue number20
DOIs
StatePublished - 2019

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