Effects of Promoter on Structural and Surface Properties of Zirconium Oxide-Based Catalyst Materials.

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Ekaterina S BorovinskayaWladimir Reschetilowski

Abstract

Ternary mixed oxide systems CuO/ZnO/ZrO2 and CuO/NiO/ZrO2 were synthesized by one-pot synthesis for a better understanding of the synthesis-property relationships of zirconium oxide-based catalyst materials. The prepared mixed oxide samples were analysed by a broad range of characterisation methods (XRD, N2-physisorption, Temperature-Programmed Ammonia Desorption (TPAD), and XPS) to examine the structural and surface properties, as well as to identify the location of the potential catalytically active sites. By XPS analysis, it could be shown that a progressive enrichment of the surface composition with copper takes place by changing from ZnO to NiO as a promoter. Thus, by addition of the second component, not only electronic but also the geometric properties of active sites, i.e., copper species distribution within the catalyst surface, can be affected in a desired way.

References

Apr 21, 2011·Chemical Society Reviews·Wei WangJinlong Gong
May 27, 2011·Journal of the American Chemical Society·George A OlahAlain Goeppert
Mar 31, 2015·Catalysis Science & Technology·Astrid WolfbeisserGünther Rupprechter

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Methods Mentioned

BETA
X-ray
single crystal diffraction

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