Y0.8Ca0.2BaCo4 - xMxO7 + δ（M = Fe、Ga、Al；0 < x < 1）固溶体在空气中热循环时的储氧能力

IF 0.9 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Inorganic Materials Pub Date : 2024-03-10 DOI:10.1134/S0020168523100126

D. I. Turkin, K. S. Tolstov, M. V. Yurchenko, A. Yu. Suntsov, V. L. Kozhevnikov

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摘要

我们研究了 Y1 - yCayBaCo4 - xMxO7 + δ 固溶体在温度为 350-580°C 的空气中循环吸收/释放氧气的过程。研究发现，Y0.8Ca0.2BaCoO7 + δ 的吸氧量最大：0.52 wt %（325 μmol O/g）。在 YBaCo4O7 + δ 钴酸盐结构中加入钙和铁，可将氧交换过程转移到更高的温度，并提高材料的储氧能力。

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

We have studied the behavior of Y_{1 –} _yCa_yBaCo_{4 –} _xM_xO_{7 + δ} solid solutions in cyclic oxygen absorption/release processes in air at temperatures in the range 350–580°C. Y_0.8Ca_0.2BaCoO_{7 + δ} has been found to absorb the largest amount of oxygen: 0.52 wt % (325 μmol O/g). The incorporation of calcium and iron into the structure of the YBaCo₄O_{7 + δ} cobaltite has been shown to shift the oxygen exchange process to higher temperatures and increase the oxygen storage capacity of the material.

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来源期刊

Inorganic Materials 工程技术-材料科学：综合

CiteScore

1.40

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.