Atomic-scale structure of nanocrystalline CeO2-ZrO2 oxides by total x-ray diffraction and pair distribution function analysis

Milen Gateshki, Markus Niederberger, Atul S. Deshpande, Yang Ren, Valeri Petkov

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20 Scopus citations

Abstract

Total x-ray diffraction and atomic pair distribution function analysis have been used to determine the atomic ordering in nanocrystalline (∼1.5nm in size) CeO2-ZrO2 prepared by a sol-gel route. Experimental data show that the oxides are a structurally and chemically inhomogeneous mixture of nanoscale domains with cubic-type and monoclinic-type atomic ordering, predominantly occupied by Ce and Zr atomic species, respectively. The study is another demonstration of the great potential of non-traditional crystallography in studying the structure of nanocrystalline materials.

Original languageEnglish
Article number156205
JournalJournal of Physics: Condensed Matter
Volume19
Issue number15
DOIs
StatePublished - Apr 16 2007

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