Abstract
Hydrothermal treatment at low temperatures is proposed for obtaining a nanocrystalline zinc aluminate spinel of interesting properties from catalytic point of view, including high specific surface area (up to 340 m 2/g), nanoporosity, and narrow pore size distribution. The precursors for hydrothermal synthesis were basic aluminium nitrate having the empirical formula Al 2(OH) 6−x(NO 3) x wherein x was equal or closed to 1, and hydrated zinc acetate. The proposed synthesis, in contrast to other methods, does not require a high temperature calcination to obtain the spinel phase. The properties of hydrothermally obtained zinc aluminate spinel make them an advanced material suitable for use in catalytic or high-tech ceramic applications.
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