Potassium-incorporated mesoporous carbons: strong solid bases with enhanced catalytic activity and stabilityElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy00100f

Potassium-incorporated mesoporous carbons: strong solid bases with enhanced catalytic activity... With the growing demand for green chemistry, mesoporous solid strong bases have attracted increasing attention in view of their tremendous potential as eco-friendly catalysts in diverse reactions. In the present study, K-incorporated mesoporous carbon is successfully prepared through high-temperature chemical activation combined with the hard-templating method. The combined method is proved to be very effective at promoting the formation of stable K species that strongly interact with the carbon support. The obtained solid bases thus have both high activity and enhanced water-resistant stability, which is reflected in their catalysis of the transesterification of ethylene carbonate with methanol to dimethyl carbonate. A much higher turnover frequency (TOF) value (430.4 h1) and better reusability are thus observed, compared with a series of typical and popular solid bases, such as MgO (TOF, 1.0 h1) and CaO/SBA-15 (TOF, 6.4 h1). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Catalysis Science & Technology Royal Society of Chemistry

Potassium-incorporated mesoporous carbons: strong solid bases with enhanced catalytic activity and stabilityElectronic supplementary information (ESI) available. See DOI: 10.1039/c8cy00100f

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Publisher
Royal Society of Chemistry
Copyright
This journal is © The Royal Society of Chemistry
ISSN
2044-4753
eISSN
2044-4761
D.O.I.
10.1039/c8cy00100f
Publisher site
See Article on Publisher Site

Abstract

With the growing demand for green chemistry, mesoporous solid strong bases have attracted increasing attention in view of their tremendous potential as eco-friendly catalysts in diverse reactions. In the present study, K-incorporated mesoporous carbon is successfully prepared through high-temperature chemical activation combined with the hard-templating method. The combined method is proved to be very effective at promoting the formation of stable K species that strongly interact with the carbon support. The obtained solid bases thus have both high activity and enhanced water-resistant stability, which is reflected in their catalysis of the transesterification of ethylene carbonate with methanol to dimethyl carbonate. A much higher turnover frequency (TOF) value (430.4 h1) and better reusability are thus observed, compared with a series of typical and popular solid bases, such as MgO (TOF, 1.0 h1) and CaO/SBA-15 (TOF, 6.4 h1).

Journal

Catalysis Science & TechnologyRoyal Society of Chemistry

Published: Apr 4, 2018

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