Oxygen nonstoichiometry of nanocrystalline ceria

Correlation relations between oxygen nonstoichiometry and particle size in nanocrystalline CeO 2 − x are revised. The ceria unit cell parameter is shown to increase from 0.5410 to 0.5453 nm as the particle size decreases from 23 to 2.3 nm. The CeO 2 − x critical particle size where cerium(IV) is com...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2010-03, Vol.55 (3), p.325-327
Main Authors: Ivanov, V. K., Baranchikov, A. E., Polezhaeva, O. S., Kopitsa, G. P., Tret’yakov, Yu. D.
Format: Article
Language:English
Subjects:
Cerium oxide
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Nanocrystals
Synthesis and Properties of Inorganic Compounds
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Summary:Correlation relations between oxygen nonstoichiometry and particle size in nanocrystalline CeO 2 − x are revised. The ceria unit cell parameter is shown to increase from 0.5410 to 0.5453 nm as the particle size decreases from 23 to 2.3 nm. The CeO 2 − x critical particle size where cerium(IV) is completely reduced to cerium(III) is calculated as 1.1–1.3 nm.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023610030034