Synthesis of ceria with various surface fractal dimensions

作者: Yu. D. Tret'yakov , A. N. Baranov , N. N. Oleinikov , V. K. Ivanov , G. N. Mazo

DOI:

关键词: ThermalFreeze-dryingChemical engineeringNanotechnologyFractal dimensionMercury (element)MicrostructureThermal decompositionMaterials scienceScanning electron microscopeNitrogen adsorption

摘要: The microstructure and surface properties of highly dispersed ceria samples various chemical thermal histories have been studied using mercury porometry, low-temperature nitrogen adsorption, scanning electron microscopy. Thermal decomposition precursor salts under relatively mild conditions (<350°C) yields CeO 2 powders with fractality (2 < D 3). prepared freeze drying are characterized by two organization levels, each level it own fractal dimension.

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