Abstract
A global defect chemistry model is presented to relate the properties of a variety of p-type perovskite conductors, including chromites, manganites, and ferrites, which can be tailored as mixed ionic and electronic conductors (MIECs). It is found that oxygen nonstoichiometry in these p-type MIECs can be correlated using reaction constant for oxygen vacancy generation. the values of reaction constant for oxygen vacancy formation can be obtained by simulating the electronic conductivity as a function of oxygen activity and temperature with the existing global model that is based on the concept of localized electron holes. the global defect chemistry model allows us to better understand and predict the electrochemical properties of perovskite type p-type conductors. ©The Electrochemical Society.
Recommended Citation
X. D. Zhou and H. U. Anderson, "A Global Defect Chemistry Model for P-type Mixed Ionic and Electronic Conductors," ECS Transactions, vol. 25, no. 2 PART 3, pp. 2807 - 2814, IOP Publishing, Dec 2009.
The definitive version is available at https://doi.org/10.1149/1.3205843
Department(s)
Materials Science and Engineering
International Standard Book Number (ISBN)
978-156677739-1
International Standard Serial Number (ISSN)
1938-6737; 1938-5862
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 IOP Publishing, All rights reserved.
Publication Date
01 Dec 2009
