Powder synthesis and characterization of nanocrystalline CeO{sub 2} via the combustion processes

Journal Article · Tue Jul 03 00:00:00 EDT 2007 · Materials Research Bulletin

OSTI ID:21000670

Lina, Gu ^[1]; Guangyao, Meng ^[2]

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1. Department of Material Science and Engineering, University of Science and Technology of China, 230026 Hefei (China) and School of Chemistry and Chemical Engineering, Anhui University, 230039 Hefei (China)
2. Department of Material Science and Engineering, University of Science and Technology of China, 230026 Hefei (China)

Nanocrystalline CeO{sub 2} powders were synthesized by the combustion reactions using citric acid and glycol as fuels and nitrate as an oxidant. The adiabatic flame temperatures in the auto ignition processes of the precursors were calculated theoretically. XRD measurements indicated that the powders produced in the combustion processes were cubic fluorite CeO{sub 2} phase. The size and morphology of the particles and extent of agglomeration in the powders were studied using transmission electron microscopy (TEM) and the particle size analyzer respectively. Blue shifts of the absorption peak of the as-prepared powders were observed.

• OSTI ID: 21000670
• Journal Information: Materials Research Bulletin, Vol. 42, Issue 7; Other Information: DOI: 10.1016/j.materresbull.2006.10.015; PII: S0025-5408(06)00401-6; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERIUM OXIDES
CHEMICAL PREPARATION
CITRIC ACID
COMBUSTION
COMBUSTION PROPERTIES
CRYSTALS
FLUORITE
GLYCOLS
IGNITION
MORPHOLOGY
NANOSTRUCTURES
NITRATES
OXIDIZERS
PARTICLE SIZE
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION