Preparation and Characterization of Nanocrystalline CeO2

Shi Yan Liao; Jian Fen Li; Kui Le Jia; Xiao Rong Zhou

doi:10.4028/www.scientific.net/AMR.403-408.4435

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 403-408Preparation and Characterization of...

Preparation and Characterization of Nanocrystalline CeO₂

Abstract:

For the purpose of developing a novel and effective nano-CeO₂ catalyst used in biomass gasification for tar removal, nanocrystalline CeO₂ particles were successfully prepared by the homogeneous precipitation method, and different approaches including TG, FT-IR, XRD and SEM were used to characterize the CeO₂ nano-particles and precursors in this study. The analysis results indicated that the synthesized precursor was hydrated cerium basic carbonates and its formula was identified as Ce₂O(CO₃)₂•nH₂O, and it can completely transform into nanocrystalline CeO₂ particles below 400 °C under the air atmosphere. The prepared CeO₂ nano-particles were found spherical in shape and well dispersed; they had high purity and a fine crystal phase of cubic syngony structure with a mean size of 13 nm.

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Periodical:

Advanced Materials Research (Volumes 403-408)

Pages:

4435-4439

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.403-408.4435

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Online since:

November 2011

Authors:

Shi Yan Liao, Jian Fen Li, Kui Le Jia, Xiao Rong Zhou

Keywords:

Cerium Oxide, Characterization, Homogeneous Precipitation, Nanoparticle

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