Defect Chemistry of Ternary Oxides

Abstract

The defect chemistry of oxides has been studied for several decades, with significant success on binary compounds, such as zirconia (ZrO2) and ceria (CeO2) based materials. the ternary compounds (ABO3), also known as the perovskite family of oxides, have been extensively studied from the early 1950s, particularly on BaTiO3, LaCrO3, LaMnO3, LaFeO3 and LaCoO3. Perovskite-type oxides are of great interest in energy conversion devices. This family of oxides has been tailored to be used as dielectrics, mixed ionic and electronic conductors superionic conductors and superconductors. Defect chemistry is the most important technique involved in gaining an understanding of the mass and charge transfer properties because it determines the defect type, density, defect associations, and carrier mobility. Understanding the defect chemistry in these systems allows searching for the novel materials used in fossil energy conversion systems, which requires a sufficient vacancy density, a mixed ionic and electronic conductivity, catalytic activity, and thermodynamic stability.

Department(s)

Materials Science and Engineering

International Standard Book Number (ISBN)

978-185573932-1

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 Elsevier, All rights reserved.

Publication Date

01 Jan 2005

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