Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
51839 | Catalysis Communications | 2011 | 5 Pages |
Catalysts derived from Co/Mg/Al hydrotalcite-type precursors modified with La and Ce were characterized by XANES and tested in ethanol steam reforming. The reaction data showed that, with a molar ratio of water:ethanol = 3:1 in the feed, addition of Ce and La favored acetaldehyde production. Increasing the water content (water:ethanol = 5:1) decreased the acetaldehyde formation by favoring the adsorption of water molecules on these samples, enhancing the acetaldehyde conversion.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► XANES indicated Co interacting strongly with the Mg/Al oxide support. ► The presence of Ce and La weakened the interaction Co-support. ► Ce and La favored acetaldehyde production at the lower feed water content. ► Increasing the water content decreased the acetaldehyde formation on CoCe and CoLa. ► Ce and La favored the adsorption of water molecules and acetaldehyde steam reforming.