Straightforward synthesis of MTW-type magnesium silicalite for CO fixation with epoxides under mild conditions
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 CO 2 sorption and temperature...
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Published in | Catalysis science & technology Vol. 9; no. 2; pp. 5725 - 5735 |
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Main Authors | , , , , |
Format | Journal Article |
Published |
14.10.2019
|
Online Access | Get full text |
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Summary: | 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 CO
2
sorption and temperature programmed desorption plus the activity in a typical basic reaction, Knoevenagel condensation. Mg-Si-ZSM-12 catalyzed the coupling of atmospheric CO
2
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 CO
2
fixation.
Mg-Si-ZSM-12 was hydrothermally synthesized and effective for CO
2
fixation under mild conditions. |
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Bibliography: | Electronic supplementary information (ESI) available: Fig. S1-S13 and Scheme S1. See DOI 10.1039/c9cy01329f |
ISSN: | 2044-4753 2044-4761 |
DOI: | 10.1039/c9cy01329f |