Nanoscale heterogeneities in CeO2-ZrO2 nanocrystals highlighted by UV-resonant Raman spectroscopy

Selection of the excitation wavelength at nonresonant and resonant Raman conditions provided detection selectivity in the tetragonal and cubic phases in CeO(2)-ZrO(2) nanocrystals, respectively. It was suggested that cubic-phase domains containing Ce(3+) deficiencies were involved in the tetragonal-...

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Bibliographic Details
Published in:Nanoscale 2010-08, Vol.2 (8), p.1426-1428
Main Authors: Taniguchi, Takaaki, Watanebe, Tomoaki, Ichinohe, Satoshi, Yoshimura, Masahiro, Katsumata, Ken-ichi, Okada, Kiyoshi, Matsushita, Nobuhiro
Format: Article
Language:English
Subjects:
Catalysis
Cerium - chemistry
Gases - chemistry
Heterogeneity
Nanocomposites
Nanocrystals
Nanomaterials
Nanoparticles - chemistry
Nanostructure
Oxidation-Reduction
Phases
Raman spectroscopy
Spectrum Analysis, Raman
Wavelengths
Zirconium - chemistry
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Summary:Selection of the excitation wavelength at nonresonant and resonant Raman conditions provided detection selectivity in the tetragonal and cubic phases in CeO(2)-ZrO(2) nanocrystals, respectively. It was suggested that cubic-phase domains containing Ce(3+) deficiencies were involved in the tetragonal-phase matrix.
ISSN:2040-3364
2040-3372
DOI:10.1039/c0nr00040j