Title of article
Mechanism of gas–solid exchange processes for some perovskites
Author/Authors
T.I. and Khromushin، نويسنده , , I.V and Aksenova، نويسنده , , T.I and Zhotabaev، نويسنده , , Zh.R.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2003
Pages
4
From page
37
To page
40
Abstract
Experimental data on oxygen desorption from barium cerates doped with neodymium together with data on equilibrium saturation of cerates by oxygen were used for mathematical modelling of oxygen nonstoichiometry of the oxides as a function of PO2. Such sorption parameters as ks0 and Q were determined by iterative fitting of experimental with calculated data and good agreement of experimental and modelled data confirms the adequacy of proposed model. It was also fond that LaMnO3 doped with strontium has a tendency to interact with carbon dioxide during sample annealing in air.
Keywords
Perovskite oxides , manganites , High-temperature proton conductors , Thermodesorption spectroscopy , Energy of activation , Oxygen index , Constant of sorption rate
Journal title
Solid State Ionics
Serial Year
2003
Journal title
Solid State Ionics
Record number
1709412
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