Influence of Preparation Method of the CeO2 over their Structural Characteristics

Laédna Souto Neiva; Aluska N. Simões; Matheus J.C. Oliveira; Maria Aparecida Ribeiro; Elvia Leal; Lucianna Gama

doi:10.4028/www.scientific.net/MSF.727-728.1256

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HomeMaterials Science ForumMaterials Science Forum Vols. 727-728Influence of Preparation Method of the CeO2 over...

Influence of Preparation Method of the CeO₂ over their Structural Characteristics

Abstract:

The aim this work is to synthesize the CeO₂ in the ceramic powder form through three different methods of synthesis, they are: method of combustion, Pechini method and hydrothermal method. Will be evaluated the influence exerted by these methods of preparing of the metallic oxide on the structural features presented in the same. Three samples of CeO₂ were synthesized in this work, they were analysed by x-ray diffraction, SEM and adsorption and desorption of N₂ by BET method. According to the results has been observed that the synthesis method has great influence on the structural characteristics of CeO₂ obtained. The sample of CeO₂ synthesized by Pechini method showed a structure with a higher percentage of crystallinity and average pore diameter smaller when compared to samples of CeO₂ synthesized by means of the combustion method and of the hydrothermal method. The sample synthesized by the combustion reaction method presented larger agglomerated of unitary particles.

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Materials Science Forum (Volumes 727-728)

Pages:

1256-1259

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.1256

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Online since:

August 2012

Authors:

Laédna Souto Neiva, Aluska N. Simões, Matheus J.C. Oliveira, Maria Aparecida Ribeiro, Elvia Leal, Lucianna Gama

Keywords:

CeO₂, Ceramic Powder, Ceria, Different Synthesis Methods

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