Determining the maximum lanthanum incorporation in the fluorite structure of La-doped ceria nanocubes for enhanced redox ability

Danilo Loche, Lucy M. Morgan, Alberto Casu, Gavin Mountjoy, Colm O'Regan, Anna Corrias*, Andrea Falqui

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Ceria nanocubes have been doped with increasing amounts of lanthanum to enhance their redox ability. X-ray diffraction and transmission electron microscopy techniques provide a consistent picture indicating that there is an upper limit to the lanthanum that can be incorporated in the fluorite structure of ceria nanocubes, which is close to 7.5 mol% La. This limited loading is nevertheless able to produce a significant enhancement of the ceria redox ability as evidenced by use of X-ray absorption spectroscopy to determine the Ce3+/Ce4+ ratio in samples submitted to a degassing treatment at room temperature.

Original languageEnglish (US)
Pages (from-to)6745-6751
Number of pages7
JournalRSC Advances
Volume9
Issue number12
DOIs
StatePublished - 2019

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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