Abstract
CeO2 acted as an efficient and reusable heterogeneous catalyst for transesterification of esters with alcohols under the solvent-free conditions at 160 °C. Among the 11 kinds of metal oxides, CeO2 is the most suitable catalyst in terms of catalytic activity, leaching-resistance and reusability. This catalytic system tolerates various esters and alcohols, and valuable esters such as heteroaromatic esters and benzyl benzoates are produced, demonstrating a practical utility of the system. On the basis of kinetic analysis and in situ IR studies of adsorbed species, a reaction mechanism is proposed, in which proton abstraction of alcohol by a Lewis base site of CeO2 to yield alkoxide species is the rate-limiting step.
Original language | English |
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Pages (from-to) | 1641-1646 |
Number of pages | 6 |
Journal | Green Chemistry |
Volume | 15 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2013 Jun 1 |
ASJC Scopus subject areas
- Environmental Chemistry
- Pollution