B-site deficient hexagonal perovskites: Structural stability, ionic order-disorder and electrical properties

IF 9.1 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Progress in Solid State Chemistry Pub Date : 2024-06-01 DOI:10.1016/j.progsolidstchem.2024.100459

Xiaoyan Yang , Alberto J. Fernández–Carrión , Xinyue Geng , Xiaojun Kuang

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Abstract

This review presents an overview on the structures and electrical properties of B-site deficient hexagonal perovskite oxides, which have been receiving increasing attention as key components as dielectric resonators in microwave telecommunications, as well as solid-state oxide ion and proton conductors in solid oxide fuel cells. The structural evolution and stability, order-disorder of cation and anions, and mechanisms underlying the dielectric and ionic conduction behaviors for the B-site deficient hexagonal perovskites are summarized and the roles of the B-site deficiency on the structural stability and option, ion order-disorder and electrical performance are highlighted. This provides useful guidance for design of new hexagonal perovskite oxide materials and structural control to enhance their electrical properties and discover new functionality as dielectric resonators and solid-state ionic conductors.

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缺乏 B 位的六方过氧化物：结构稳定性、离子有序-无序和电学特性

这篇综述概述了缺位六方包晶氧化物的结构和电学性质，这些氧化物作为微波通信中的介质谐振器以及固体氧化物燃料电池中的固态氧化物离子和质子导体的关键成分，受到越来越多的关注。本研究总结了六方过氧化物的结构演化和稳定性、阳离子和阴离子的阶次失调以及介电和离子传导行为的内在机制，并强调了"-位 "缺陷对结构稳定性和选择性、离子阶次失调和电性能的影响。这为新型六方包晶氧化物材料的设计和结构控制提供了有益的指导，从而提高了它们的电学性能，并发现了它们作为介质谐振器和固态离子导体的新功能。

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来源期刊

Progress in Solid State Chemistry 化学-无机化学与核化学

CiteScore

14.10

自引率

3.30%

发文量

期刊介绍： Progress in Solid State Chemistry offers critical reviews and specialized articles written by leading experts in the field, providing a comprehensive view of solid-state chemistry. It addresses the challenge of dispersed literature by offering up-to-date assessments of research progress and recent developments. Emphasis is placed on the relationship between physical properties and structural chemistry, particularly imperfections like vacancies and dislocations. The reviews published in Progress in Solid State Chemistry emphasize critical evaluation of the field, along with indications of current problems and future directions. Papers are not intended to be bibliographic in nature but rather to inform a broad range of readers in an inherently multidisciplinary field by providing expert treatises oriented both towards specialists in different areas of the solid state and towards nonspecialists. The authorship is international, and the subject matter will be of interest to chemists, materials scientists, physicists, metallurgists, crystallographers, ceramists, and engineers interested in the solid state.