Nanostructured gadolinium-doped ceria microsphere synthesis from ion exchange resin: Multi-scale in-situ studies of solid solution formation

Marie Caisso, Florent Lebreton, Denis Horlait, Sébastien Picart, Philippe M. Martin, René Bès, Catherine Renard, Pascal Roussel, Daniel R. Neuville, Kathy Dardenne, Jörg Rothe, Thibaud Delahaye*, André Ayral

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

Abstract

In the current nano-sized material revolution, the main limitations to a large-scale deployment of nanomaterials involve health concerns related to nano-dissemination via air. Developing new chemical routes benefiting from nano-size advantages while avoiding their hazards could overcome these limitations. Addressing this need, a chemical route leading to soft nano-particle agglomerates, i.e., macroscopic precursors presenting the ability to be decomposed into nano-sized materials, was developed and applied to Ce 0.8Gd0.2O2-δ. Using cerium/gadolinium- loaded ion exchange resin, the Ce0.8Gd0.2O 2-δ solid solution formation as a function of temperature was studied in-situ through X-ray diffraction, X-ray absorption spectroscopy and Raman spectroscopy. Temperatures corresponding to the organic skeleton decomposition and to the mixed oxide crystallization were identified. An optimal heat treatment, leading to nanostructured soft agglomerates, was established. Microsphere processing capabilities were evaluated and particle size distribution measurements were recorded. A very low fracture strength was calculated, and a nanometric particle size distribution (170 nm) was determined.

Original languageEnglish
Pages (from-to)155-163
Number of pages9
JournalJournal of Solid State Chemistry
Volume218
DOIs
Publication statusPublished - 1 Jan 2014
MoE publication typeA1 Journal article-refereed

Keywords

  • GDC
  • Ion exchange resin
  • Nanostructured
  • Raman
  • XAS
  • XRD

Fingerprint Dive into the research topics of 'Nanostructured gadolinium-doped ceria microsphere synthesis from ion exchange resin: Multi-scale in-situ studies of solid solution formation'. Together they form a unique fingerprint.

Cite this