D. I. Turkin, K. S. Tolstov, M. V. Yurchenko, A. Yu. Suntsov, V. L. Kozhevnikov
{"title":"Oxygen Storage Capacity of Y0.8Ca0.2BaCo4 – xMxO7 + δ (M = Fe, Ga, Al; 0 < x < 1) Solid Solutions during Thermal Cycling in Air","authors":"D. I. Turkin, K. S. Tolstov, M. V. Yurchenko, A. Yu. Suntsov, V. L. Kozhevnikov","doi":"10.1134/S0020168523100126","DOIUrl":null,"url":null,"abstract":"<p>We have studied the behavior of Y<sub>1 –</sub> <sub><i>y</i></sub>Ca<sub><i>y</i></sub>BaCo<sub>4 –</sub> <sub><i>x</i></sub>M<sub><i>x</i></sub>O<sub>7 + δ</sub> solid solutions in cyclic oxygen absorption/release processes in air at temperatures in the range 350–580°C. Y<sub>0.8</sub>Ca<sub>0.2</sub>BaCoO<sub>7 + δ</sub> 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 YBaCo<sub>4</sub>O<sub>7 + δ</sub> cobaltite has been shown to shift the oxygen exchange process to higher temperatures and increase the oxygen storage capacity of the material.</p>","PeriodicalId":585,"journal":{"name":"Inorganic Materials","volume":"59 10","pages":"1104 - 1110"},"PeriodicalIF":0.9000,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S0020168523100126","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
We have studied the behavior of Y1 –yCayBaCo4 –xMxO7 + δ solid solutions in cyclic oxygen absorption/release processes in air at temperatures in the range 350–580°C. Y0.8Ca0.2BaCoO7 + 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 YBaCo4O7 + δ cobaltite has been shown to shift the oxygen exchange process to higher temperatures and increase the oxygen storage capacity of the material.
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.
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