Chemistry of interactions in the La2O3-MO(MCO3)-Mn2O3, M = Ca, Sr, Ba, Cd systems

B.V. Slobodin, L.L. Surat, V.G. Vassiliev, G.P. Schveikin, A.P. Nossov
{"title":"Chemistry of interactions in the La2O3-MO(MCO3)-Mn2O3, M = Ca, Sr, Ba, Cd systems","authors":"B.V. Slobodin,&nbsp;L.L. Surat,&nbsp;V.G. Vassiliev,&nbsp;G.P. Schveikin,&nbsp;A.P. Nossov","doi":"10.1016/S0992-4361(98)80190-2","DOIUrl":null,"url":null,"abstract":"<div><p>The sequence of phase transitions in the system La<sub>2</sub>O<sub>3</sub>-MO(MCO<sub>3</sub>)Mn<sub>2</sub>O<sub>3</sub>, (M=Ca, Sr, Ba, Cd) and the span range of La<sub>1−x</sub>M<sub>x</sub>MnO<sub>3±δ</sub> solid solutions formed were studied. It is demonstrated that interaction begins at 650°C due to formation of divalent metal manganites. Just simultaneously as a result of oxidation-reduction processes and structural transformations the synthesis of small quantities of solid solutions takes place, which is kinetically favoured in the case of smaller divalent metal cations. The chemical transformation finishes at 1200°C. The values of x at all systems are near 0,35. The absence of CdMnO<sub>3</sub> composition in the system CdO-MnO is proved.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 2","pages":"Pages 111-115"},"PeriodicalIF":0.0000,"publicationDate":"1998-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(98)80190-2","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"European Journal of Solid State and Inorganic Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0992436198801902","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6

Abstract

The sequence of phase transitions in the system La2O3-MO(MCO3)Mn2O3, (M=Ca, Sr, Ba, Cd) and the span range of La1−xMxMnO3±δ solid solutions formed were studied. It is demonstrated that interaction begins at 650°C due to formation of divalent metal manganites. Just simultaneously as a result of oxidation-reduction processes and structural transformations the synthesis of small quantities of solid solutions takes place, which is kinetically favoured in the case of smaller divalent metal cations. The chemical transformation finishes at 1200°C. The values of x at all systems are near 0,35. The absence of CdMnO3 composition in the system CdO-MnO is proved.

La2O3-MO(MCO3)-Mn2O3, M = Ca, Sr, Ba, Cd体系中相互作用的化学性质
研究了La2O3-MO(MCO3)Mn2O3体系的相变顺序(M=Ca, Sr, Ba, Cd)和La1−xMxMnO3±δ固溶体形成的跨度范围。结果表明,由于二价金属锰矿石的形成,相互作用在650℃时开始。由于氧化还原过程和结构转变的结果,同时发生了少量固溶体的合成,这在动力学上有利于较小的二价金属阳离子。化学转变在1200℃结束。所有系统的x值都在0,35附近。证明了体系CdO-MnO中不存在CdMnO3成分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信