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A Study of the Influence of Composition on the Microstructural Properties of ZnO/Al2O3 Mixed Oxides

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Naumann d'Alnoncourt,  Raoul
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Kasatkin,  Igor
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Behrens,  Malte
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Muhler,  Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Miao, S., Naumann d'Alnoncourt, R., Reinecke, T., Kasatkin, I., Behrens, M., Schlögl, R., et al. (2009). A Study of the Influence of Composition on the Microstructural Properties of ZnO/Al2O3 Mixed Oxides. European Journal of Inorganic Chemistry, (7), 910-921. Retrieved from http://dx.doi.org/10.1002/ejic.200800987.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-FA80-5
Abstract
A series of ZnO/Al2O3 mixed oxide samples with varyingZn/Al ratio is prepared by coprecipitation, ageing, drying, and calcination. Samples are investigated in the state after drying and calcination. The applied methods include X-ray diffraction, solid-state 27Al magic-angle spinning nuclear magnetic resonance spectroscopy, transmission electron microscopy and thermogravimetric experiments coupled with evolved gas analysis. Phases present in the dried precursor samples include hydrozincite, zaccagnaite, and an unknown phase. After calcination zinc oxide and spinel can be found. All results indicate the substitution of Al ions for Zn ions in zinc oxide of zinc-rich samples.