| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1488683 | Materials Research Bulletin | 2013 | 5 Pages |
The aim of this work is to study the changes of hydrotalcites structure when is subjected to gradual multiple calcination/hydration treatments in the presence of water or alkaline solution with the same composition like in co-precipitation step and then to analyze its influence on the catalytic activity in the cyanoethylation reaction between ethanol and acrylonitrile with the main product being beta-ethoxypropionitrile according to these treatment. The samples were characterized by elemental analysis, XRD, DRIFT, CO2-TPD.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Memory effect by means of alkaline solution extract aluminum from hydrotalcite-type structure. ► After several hydration/calcination cycles the Mg and Al cations migrate to stable MgAl2O4 spinel. ► Replacing of carbonic anions from interlayer with hydroxyl groups lead to a pronounced basic character of catalysts. ► The activity of samples in cyanoethylation reaction depends mostly by basicity of samples.
