Effect of calcium addition on zinc aluminate spinel
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Abstract
The addition of calcium to zinc aluminate, prepared by coprecipitation methods, causes an increase in the specific surface area and a modification of the crystal morphology. However, the catalytic isobutane dehydrogenation properties remain unchanged. Careful characterization studies (XRD, TGA and SEM) indicate that calcium may be deposited on the zinc aluminate surface.
Keywords
Metallic oxide catalysts coprecipitation of Al-Ca-Zn mixed oxide isobutane dehydrogenation N2 physisorption X-ray diffraction thermal analysis scanning electron microscopyPreview
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© J.C. Baltzer A.G. Scientific Publishing Company 1992