Oxygen Storage Capacity of Y0.8Ca0.2BaCo4-xMxO7+δ (M = Fe, Ga, Al; 0 < x < 1) Solid Solutions during Thermal Cycling in Air

被引：1
|
作者：
Turkin, D. I. [1 ]
Tolstov, K. S. [1 ]
Yurchenko, M. V. [1 ]
Suntsov, A. Yu. [1 ]
Kozhevnikov, V. L. [1 ]
机构：
[1] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg 620108, Russia
来源：
INORGANIC MATERIALS | 2023年 / 59卷 / 10期
基金：
俄罗斯科学基金会;
关键词：
nonstoichiometric oxides; oxygen exchange; thermal cycling; ADSORPTION PROPERTIES; PHASE-STABILITY; YBACO4O7+DELTA; CAPABILITY; OXIDES; NONSTOICHIOMETRY;
D O I：
10.1134/S0020168523100126
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have studied the behavior of Y1-yCayBaCo4-xMxO7+delta solid solutions in cyclic oxygen absorption/release processes in air at temperatures in the range 350-580 degrees C. Y0.8Ca0.2BaCoO7+delta has been found to absorb the largest amount of oxygen: 0.52 wt % (325 mu mol O/g). The incorporation of calcium and iron into the structure of the YBaCo4O7+delta cobaltite has been shown to shift the oxygen exchange process to higher temperatures and increase the oxygen storage capacity of the material.
引用
收藏
页码：1104 / 1110
页数：7
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