18 Citations (Scopus)

Abstract

We have constructed a spray dryer to synthesize doped ceria nanoparticles. The system was employed to synthesize mixed oxide nanoparticles of praseodymium doped CeO2 (Ce0.97Pr0.03O2, Ce 0.90Pr0.10O2, and Ce0.80Pr 0.20O2). X-ray diffraction confirmed the fluorite-like cubic crystal structure of the synthesized materials after heat treatment at 700 °C for 2 h. As-dried CeO2 samples were found to have an average particle size of (6.0 ± 0.2) nm which increased to (17.0 ± 0.4) nm after heat treatment with an improvement in crystallinity. The particle size increased steadily with Pr content. The lattice parameter of Pr-doped CeO 2 was found to increase or decrease with Pr content depending on the heat treatment process.

Original languageEnglish (US)
Pages (from-to)280-286
Number of pages7
JournalChemical Physics Letters
Volume495
Issue number4-6
DOIs
StatePublished - Aug 10 2010

Fingerprint

cerium oxides
Spray drying
Rare earths
drying
sprayers
heat treatment
rare earth elements
Heat treatment
Nanoparticles
nanoparticles
Praseodymium
synthesis
Particle size
drying apparatus
praseodymium
Fluorspar
Cerium compounds
fluorite
mixed oxides
Oxides

ASJC Scopus subject areas

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

Cite this

A spray drying system for synthesis of rare-earth doped cerium oxide nanoparticles. / Sharma, Vaneet; Eberhardt, Kathryn M.; Sharma, Renu; Adams, James; Crozier, Peter.

In: Chemical Physics Letters, Vol. 495, No. 4-6, 10.08.2010, p. 280-286.

Research output: Contribution to journalArticle

Sharma, Vaneet ; Eberhardt, Kathryn M. ; Sharma, Renu ; Adams, James ; Crozier, Peter. / A spray drying system for synthesis of rare-earth doped cerium oxide nanoparticles. In: Chemical Physics Letters. 2010 ; Vol. 495, No. 4-6. pp. 280-286.
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AU - Sharma, Vaneet

AU - Eberhardt, Kathryn M.

AU - Sharma, Renu

AU - Adams, James

AU - Crozier, Peter

PY - 2010/8/10

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AB - We have constructed a spray dryer to synthesize doped ceria nanoparticles. The system was employed to synthesize mixed oxide nanoparticles of praseodymium doped CeO2 (Ce0.97Pr0.03O2, Ce 0.90Pr0.10O2, and Ce0.80Pr 0.20O2). X-ray diffraction confirmed the fluorite-like cubic crystal structure of the synthesized materials after heat treatment at 700 °C for 2 h. As-dried CeO2 samples were found to have an average particle size of (6.0 ± 0.2) nm which increased to (17.0 ± 0.4) nm after heat treatment with an improvement in crystallinity. The particle size increased steadily with Pr content. The lattice parameter of Pr-doped CeO 2 was found to increase or decrease with Pr content depending on the heat treatment process.

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