Abstract
A series of Cu/Al catalysts, containing different proportions of copper and aluminium, have been prepared by coprecipitation using metal nitrate precursors and Na2CO3. The dried precipitate catalyst precursors were characterized by X-ray diffraction (XRD) to show the presence of Cu-Al binary hydrotalcite-like phase. The dried precipitates were calcined at 873 K for 3 h. The calcined catalysts were characterized by XRD and temperature-programmed reduction (TPR) methods to show the presence of unidentified mixed oxides. The results showed that the extent of metal-support interaction increased with copper loading due to the mixed oxides formed from the hydrotalcite-type phase during calcination. High dispersion of the mixed metal oxides was indicated by comparison with similar studies on Cu-Al catalysts, prepared by similar methods, whose precursors showed no hydrotalcite formation.
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Lwin, Y., Mohamad, A.B., Yaakob, Z. et al. XRD and TPR Studies of Cu-Al Hydrotalcite Derived Highly Dispersed Mixed Metal Oxides. Reaction Kinetics and Catalysis Letters 70, 303–310 (2000). https://doi.org/10.1023/A:1010345017627
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DOI: https://doi.org/10.1023/A:1010345017627