Published 1997 | Version v1
Journal article Metadata-only

Synthesis and characterization of CeO2 obtained by spray pyrolysis method

Creators

  • 1. Inst. Magnetismo Aplicado (RENFE-UCM), Madrid (Spain)
  • 2. UCM, Madrid (Spain). Dept. Q. Inorganica y Bioinorganica
  • 3. Dept. Quimica Inorganica, UCM, Madrid (Spain)

Description

We describe in this paper a study of the synthesis and microstructural characterization of CeO2 obtained by pyrolysis of an aerosol, for its application in the preparation of three-way catalysts. The samples so obtained have been characterized by XRD, SEM and HREM, and their average crystallite size has been calculated. SEM photographs of the material show that it is formed as hollow spheres with diameters ranging between 0.1 and 2 μm. HREM images of small pyrosol particles show that each pyrosol sphere is constituted by a large number of very small (50-100 A) CeO2 crystallites randomly distributed. (orig.)

Additional details

Publishing Information

Journal Title
Materials Science Forum
Journal Volume
235-238
Journal Issue
pt.1
Journal Page Range
p. 291-296.
ISSN
0255-5476
CODEN
MSFOEP

Conference

Title
International symposium on metastable, mechanically alloyed and nanocrystalline materials (ISMANAM).
Dates
20-24 May 1996.
Place
Rome (Italy).

INIS

Country of Publication
Switzerland
Country of Input or Organization
Switzerland
INIS RN
28044868
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
AEROSOLS; CATALYSTS; CERIUM OXIDES; ELECTRON DIFFRACTION; GRAIN SIZE; HEAT TREATMENTS; POWDERS; PYROLYSIS; SCANNING ELECTRON MICROSCOPY; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION
Descriptors DEC
CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; COLLOIDS; CRYSTAL STRUCTURE; DECOMPOSITION; DIFFRACTION; DISPERSIONS; ELECTRON MICROSCOPY; MICROSCOPY; MICROSTRUCTURE; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SCATTERING; SIZE; SOLS