High-Temperature Oxygen Release from YBaCo2O6- δ Double Perovskite in the Quasi-Equilibrium Regime

被引：0
|
作者：
Popov, M. P. [1 ]
Gongola, M. I. [1 ]
Guskov, R. D. [1 ]
Kovalev, I., V [1 ]
Nemudry, A. P. [1 ]
机构：
[1] Russian Acad Sci, Siberian Branch, Inst Solid State Chem & Mechanochem, Novosibirsk, Russia
来源：
CHEMISTRY FOR SUSTAINABLE DEVELOPMENT | 2024年 / 32卷 / 05期
关键词：
cathode materials of solid oxide fuel elements; cathode; perovskites; YBC; solid-phase synthesis; quasi-equilibrium oxygen release; OXIDE FUEL-CELLS; PERMEATION; MEMBRANES; CATHODES;
D O I：
10.15372/CSD2024599
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The results of studying high-temperature oxygen desorption from an YBaCo2O6-delta oxide in the quasi-equilibrium regime are presented. The solid-phase synthesis of the oxide, ways and methods of its characterisation are described. The data obtained by quasi-equilibrium oxygen release technique allowed us to provide a reliable description of oxygen desorption from the oxide and to calculate the change in oxygen content in the oxide. Oxygen content in YBaCo2O6-delta is determined as a continuous function of temperature and the partial pressure of oxygen within the ranges of 600-900 degrees C and 0.2-10(-5) atm, respectively. The data obtained make it possible to identify the conditions of phase transitions in the oxide and determine the stability regions of the conductive phase, which is necessary for the development of cathode materials for solid oxide fuel cells.
引用
收藏
页码：646 / 652
页数：7
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