锂-锰-欧-氧体系中的相平衡

IF 1.1 4区化学 Q4 CHEMISTRY, PHYSICAL

Doklady Physical Chemistry Pub Date : 2024-01-31 DOI:10.1134/s0012501623700136

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引用次数: 0

摘要

摘要首次研究了温度范围为 700-1000°С 的锂-锰-铕-O 体系中的相平衡，并构建了氧分压为 21 kPa 时锂-锰-铕三角形内的浓度图。结果表明，与 LiEuO2-LiMnO2 和 LiEuO2-LiMn2O4 部分不同，LiEuO2-Li2MnO3 部分可表示为准二元。据测定，尖晶石 LiMn2O4（Fd \(\bar {3}\) m）中 Eu 对 Mn 的同构取代不超过 2 mol %，而 Li2MnO3（C2/m）则失去了单相特性。

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Phase Equilibria in the Li–Mn–Eu–O System

Abstract

Phase equilibria in the Li–Mn–Eu–O system were studied for the first time in the temperature range 700–1000°С, and a concentration diagram was constructed within the Li–Mn–Eu triangle at an oxygen partial pressure of 21 kPa. It was shown that the LiEuO₂–Li₂MnO₃ section can be represented as quasi-binary, unlike the sections LiEuO₂–LiMnO₂ and LiEuO₂–LiMn₂O₄. It was determined that the isomorphic substitution of Eu for Mn in spinel LiMn₂O₄ (Fd \(\bar {3}\) m) does not exceed 2 mol %, while Li₂MnO₃ (C2/m) loses its single-phase character.

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来源期刊

Doklady Physical Chemistry 化学-物理化学

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Doklady Physical Chemistry is a monthly journal containing English translations of current Russian research in physical chemistry from the Physical Chemistry sections of the Doklady Akademii Nauk (Proceedings of the Russian Academy of Sciences). The journal publishes the most significant new research in physical chemistry being done in Russia, thus ensuring its scientific priority. Doklady Physical Chemistry presents short preliminary accounts of the application of the state-of-the-art physical chemistry ideas and methods to the study of organic and inorganic compounds and macromolecules; polymeric, inorganic and composite materials as well as corresponding processes. The journal is intended for scientists in all fields of chemistry and in interdisciplinary sciences.