The investigation of the physical and chemical properties of bulk Ce 1-xTb xO 2 and Ce 1-xTb xO y nanoparticles was discussed. The synchrotron-based X-ray diffraction, Raman spectroscopy and first-principles density-functional (DF) calculations were used. A small tetragonal distortion after introducing terbium in ceria was observed by DF and Raman spectra. It was shown that the presence of Tb generates strain in the lattice through the variation of the ionic radii and creation of crystal imperfections and O vacancies. It was found that the strain increases with the content of Tb and affects the chemical reactivity of the Ce 1-xTb xO y nanoparticles.
|Original language||English (US)|
|Number of pages||11|
|Journal||Journal of Chemical Physics|
|State||Published - Sep 15 2004|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry