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|Title:||KF on γ-alumina: An efficient catalyst for the aldol condensation to pseudoionones||Authors:||Raju, V.
|Issue Date:||30-Apr-2011||Citation:||Raju, V., Radhakrishnan, R., Jaenicke, S., Chuah, G.K. (2011-04-30). KF on γ-alumina: An efficient catalyst for the aldol condensation to pseudoionones. Catalysis Today 164 (1) : 139-142. ScholarBank@NUS Repository. https://doi.org/10.1016/j.cattod.2010.10.043||Abstract:||KF/γ-alumina is an effective catalyst for the aldol condensation of citral with acetone. Even at a relatively low acetone/citral ratio of 1-10, the selectivity to pseudoionones was high, ranging between 82% and 97%. X-ray diffraction shows the presence of KF and K3AlF6 crystallographic phases on the supported catalyst. At KF loadings of 3-6.75 mmol g-1, a pretreatment of the catalyst by heating to 450 °C was necessary to obtain an active catalyst. However, samples with KF loadings of 8.5 mmol g-1 and higher were active even without pretreatment, facilitating handling and use of the catalysts. The development of (1 1 1) planes revealed by in situ XRD during the thermal activation process correlates with the activity for aldol condensation. © 2010 Elsevier B.V. All rights reserved.||Source Title:||Catalysis Today||URI:||http://scholarbank.nus.edu.sg/handle/10635/95479||ISSN:||09205861||DOI:||10.1016/j.cattod.2010.10.043|
|Appears in Collections:||Staff Publications|
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