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Title: Investigation of some phase transformations induced by CO2-laser irradiation in some rare-earth oxides
Authors: Vasiliu, Florin ×
Sarbu, Corneliu
Parvulescu, VI #
Issue Date: Feb-1997
Publisher: Elsevier science bv
Series Title: Solid state ionics vol:95 issue:1-2 pages:107-112
Abstract: Binary rare-earth ceria-ytterbia and ceria-dysprosia and pure CeO2 have been subjected to CO2-laser irradiation. All the samples have been prepared by precipitation and controlled drying. Irradiated samples as well as the samples calcinated at 1273 K have been studied using TG-DTA, TEM and SAED, WAXS and FT-IR. Introduction of a second rare-earth oxide, like ytterbia or dysprosia led to an important increase of 'stability' towards the CO2-laser irradiation. Thermal investigation of these samples revealed in fact a 'metastability' because, for the temperatures of about 500 K, a release of oxygen has been observed. This behaviour could recommend CO2-laser irradiation as a possible alternative for activation of the oxidation catalysts.
URI: 
ISSN: 0167-2738
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Associated Section of ESAT - INSYS, Integrated Systems
Physical Metallurgy and Materials Engineering Section (-)
× corresponding author
# (joint) last author

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