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Study of the formation of perovskite type lanthanum ruthenates by heating their hydrous precursor

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Title Study of the formation of perovskite type lanthanum ruthenates by heating
their hydrous precursor
 
Creator Labhsetwar , Nitin
Balek, V
Vecernikova, E
Bezdicka, P
Subrt, J
Mitsuhashi, T
Kagne, S
Rayalu, S S
Haneda, H
 
Subject Materials Science
 
Description Emanation thermal analysis (ETA), differential thermal analysis (DTA), thermogravimetry (TG), evolved gas analysis with mass spectrometric
detection (EGA-MS), and X-ray diffraction (XRD) were used to investigate the formation of perovskite type lanthanum ruthenates on heating
their hydroxide precursor in argon from 20 to 1200 ◦C. The co-precipitated lanthanum–ruthenium mixed hydroxide containing a small amount of
carbonates was used as a precursor. The mass loss corresponding to the release of water and CO2 from the precursor was determined by TG and
EGA (MS), respectively. The ETA characterized the exposure of sample surface after release of water and CO2, as well as microstructure development
corresponding to the crystallization and structure ordering of LaRuO3 and La3.5Ru4.0O13 perovskite phases. The obtained information
on formation of phases and their transformation is useful for optimizing their synthesis protocols for achieving the desired physical properties,
and to estimate the thermal stability of these materials to be used as catalysts.
 
Publisher Elsevier
 
Date 2006-08-26
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://neeri.csircentral.net/984/1/labhsetwar2006%281%29.pdf
Labhsetwar , Nitin and Balek, V and Vecernikova, E and Bezdicka, P and Subrt, J and Mitsuhashi, T and Kagne, S and Rayalu, S S and Haneda, H (2006) Study of the formation of perovskite type lanthanum ruthenates by heating their hydrous precursor. Journal of Colloid and Interface Science, 300 (1). pp. 232-236. ISSN 0021-9797
 
Relation https://www.journals.elsevier.com/journal-of-colloid-and-interface-science
http://neeri.csircentral.net/984/