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HomeSolid State PhenomenaSolid State Phenomena Vol. 312Theoretical and Experimental Studies of Structural...

Theoretical and Experimental Studies of Structural Defects in CeO₂ Nanoparticles

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Abstract:

The atomic structure and morphology of cerium oxide nanoparticles obtained by laser ablation are experimentally and theoretically investigated. Using transmission electron microscopy, X-ray diffractometry, and electron energy loss spectroscopy, it has been shown that particles are enriched in oxygen vacancies that stabilize their internal structure. The density functional method was used to study the dependence of the unit cell parameter of CeO₂ nanoparticles on their size. An analysis of the charge density distribution shows a different structural distribution of Ce³⁺ and Ce⁴⁺ atoms in nanoparticles.

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Physics and Technology of Nanostructured Materials V

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Periodical:

Solid State Phenomena (Volume 312)

Pages:

68-73

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.312.68

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Online since:

November 2020

Authors:

Maxim A. Pugachevskii, Andrey N. Chibisov*, A.P. Kuzmenko, Aleksandr S. Fedorov

Keywords:

Ab Initio Calculation, Atomic Structure, Cerium Oxide, Defects, Laser Ablation, Nanoparticles

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© 2020 Trans Tech Publications Ltd. All Rights Reserved

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