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Carbonatation and Decarbonatation Kinetics in the La2O3-La2O2CO3 System under CO2 Gas Flows
Joint Authors
Gavarri, Jean Raymond
Arab, Madjid
Bakiz, Bahcine
Benlhachemi, Abdeljalil
Satre, Pierre
Guinneton, Frédéric
Villain, Sylvie
Source
Advances in Materials Science and Engineering
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-09-16
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
The carbonatation of La2O3 oxide and the decarbonatation of lanthanum carbonate phase La2O2CO3 are investigated using thermal and thermogravimetry analyses under CO2 gas flow.
The initial phase La2O3 is first elaborated from pyrolysis of a LaOHCO3 precursor.
Then, thermal and thermogravimetry analyses are carried out under CO2 flow, as temperature increases then decreases.
The carbonatation kinetics of La2O3 is determined at three fixed temperatures.
Electrical impedance spectroscopy is performed to determine the electrical responses associated with ionic mobilities and phase changes, in the temperature range 25 to 900∘C.
The electrical conduction during heating under CO2 gas flow should be linked to two regimes of ionic conduction of the carbonate ions.
From these electrical measurements, the ionic mobility of carbonate ions CO3 2− is found to be close to 0.003 ⋅10−4 cm2 s−1 V−1 at 750∘C for the monoclinic La2O2CO3 phase.
American Psychological Association (APA)
Bakiz, Bahcine& Guinneton, Frédéric& Arab, Madjid& Benlhachemi, Abdeljalil& Villain, Sylvie& Satre, Pierre…[et al.]. 2010. Carbonatation and Decarbonatation Kinetics in the La2O3-La2O2CO3 System under CO2 Gas Flows. Advances in Materials Science and Engineering،Vol. 2010, no. 2010, pp.1-6.
https://search.emarefa.net/detail/BIM-465818
Modern Language Association (MLA)
Bakiz, Bahcine…[et al.]. Carbonatation and Decarbonatation Kinetics in the La2O3-La2O2CO3 System under CO2 Gas Flows. Advances in Materials Science and Engineering No. 2010 (2010), pp.1-6.
https://search.emarefa.net/detail/BIM-465818
American Medical Association (AMA)
Bakiz, Bahcine& Guinneton, Frédéric& Arab, Madjid& Benlhachemi, Abdeljalil& Villain, Sylvie& Satre, Pierre…[et al.]. Carbonatation and Decarbonatation Kinetics in the La2O3-La2O2CO3 System under CO2 Gas Flows. Advances in Materials Science and Engineering. 2010. Vol. 2010, no. 2010, pp.1-6.
https://search.emarefa.net/detail/BIM-465818
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-465818