The behavior of mixed-metal oxides: Physical and chemical properties of bulk Ce 1-xTb xO 2 and nanoparticles of Ce 1-xTb xO y

Xianqin Wang, Jonathan C. Hanson, Gang Liu, José A. Rodriguez, Ana Iglesias-Juez, Marcos Fernández-García

Research output: Contribution to journalArticlepeer-review

104 Scopus citations

Abstract

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 languageEnglish (US)
Pages (from-to)5434-5444
Number of pages11
JournalJournal of Chemical Physics
Volume121
Issue number11
DOIs
StatePublished - Sep 15 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'The behavior of mixed-metal oxides: Physical and chemical properties of bulk Ce <sub>1-x</sub>Tb <sub>x</sub>O <sub>2</sub> and nanoparticles of Ce <sub>1-x</sub>Tb <sub>x</sub>O <sub>y</sub>'. Together they form a unique fingerprint.

Cite this