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Journal of Nanoparticle Research

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01-08-2013 | Brief Communication

Surface electronic and structural properties of CeO₂ nanoparticles: a study by core-level photoemission and peak diffraction

Authors: M. Passacantando, S. Santucci

Published in: Journal of Nanoparticle Research | Issue 8/2013

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Abstract

A correlation between the particle size and the lattice parameter has been established in cerium oxide nanoparticles. The variation in the lattice parameter is attributed to the lattice strain induced by the introduction of Ce³⁺ due to the formation of oxygen vacancies. Lattice strain was observed to decrease with an increase in the particle size. The Ce⁴⁺ to Ce³⁺ ratio in CeO₂ nanoparticles increases with increasing the calcination temperature in air atmosphere. Such anomalous behavior is due to the physical effect of nanoparticle sizes on increasing the oxidation state of Ce ions in CeO₂.

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Title: Surface electronic and structural properties of CeO2 nanoparticles: a study by core-level photoemission and peak diffraction
Authors: M. Passacantando
S. Santucci
Publication date: 01-08-2013
Publisher: Springer Netherlands
Published in: Journal of Nanoparticle Research / Issue 8/2013
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-013-1785-0

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