Layered perovskite SrLaAlO4 as a proton-conducting material for intermediate-temperature solid oxide fuel cells: synthesis, hydration, and electrical properties
{"title":"Layered perovskite SrLaAlO4 as a proton-conducting material for intermediate-temperature solid oxide fuel cells: synthesis, hydration, and electrical properties","authors":"Danil Vasin, Natalia Lakiza, Irina Animitsa","doi":"10.1007/s11581-025-06434-7","DOIUrl":null,"url":null,"abstract":"<div><p>The work aims to investigate the layered perovskite SrLaAlO<sub>4</sub> with the Ruddlesden-Popper structure as a potential proton conductor for medium-temperature solid oxide fuel cells (SOFCs). The sample was synthesized using the glycerol-nitrate method with subsequent calcination of the sample at 1200 °C for 24 h. Electrical properties were studied in dry and humid atmospheres to confirm the presence of proton conductivity, which dominates at temperatures below 500 °C. The phase SrLaAlO<sub>4</sub> is stable over a wide range of partial pressures of oxygen and at high partial pressures of water vapor. The degree of hydration reaches 0.16 mol H<sub>2</sub>O, which corresponds to the composition SrLaAlO<sub>3.84</sub>(OH)<sub>0.32</sub>. IR studies confirmed the presence of different types of OH<sup>−</sup>-groups participating in hydrogen bonds of varying strengths.</p></div>","PeriodicalId":599,"journal":{"name":"Ionics","volume":"31 8","pages":"8173 - 8183"},"PeriodicalIF":2.6000,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ionics","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11581-025-06434-7","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The work aims to investigate the layered perovskite SrLaAlO4 with the Ruddlesden-Popper structure as a potential proton conductor for medium-temperature solid oxide fuel cells (SOFCs). The sample was synthesized using the glycerol-nitrate method with subsequent calcination of the sample at 1200 °C for 24 h. Electrical properties were studied in dry and humid atmospheres to confirm the presence of proton conductivity, which dominates at temperatures below 500 °C. The phase SrLaAlO4 is stable over a wide range of partial pressures of oxygen and at high partial pressures of water vapor. The degree of hydration reaches 0.16 mol H2O, which corresponds to the composition SrLaAlO3.84(OH)0.32. IR studies confirmed the presence of different types of OH−-groups participating in hydrogen bonds of varying strengths.
期刊介绍：
Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
