Crystal structure and oxygen permeation properties of (La, Ba, Sr)(Co, Ta)O<sub>3-δ</sub>

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Crystal structure and oxygen permeation properties of (La, Ba, Sr)(Co, Ta)O_3-δ

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作者：Isao Kagomiya ; ^{kagomiya@nitech.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Yoshihito Shimono ; Ken-ichi Kakimoto
关键词：Oxygen permeation property ; Tolerance factor ; Ion migration ; Electrical conductivity ; Ta-substituted cobaltite perovskite
刊名：Solid State Ionics
出版年：2016
出版时间：February 2016
年：2016
卷：285
期：Complete
页码：180-186
全文大小：996 K

文摘

•: The Ta-substitution in La_0.4Sr_0.6CoO_3–δ decreased σ_i and increased E_i.
•: Lattice free volume and bottleneck areas increased with the Ta-substitution.
•: The electrostatic interaction between Ta^5 + and O^2 − is a main impact for E_i increase.
•: The Ba-substitution in La_0.4Sr_0.6Co_0.8Ta_0.2O_3–δ increased J_O2 and σ_i.
•: The Ba-substitution slightly increased E_i of the σ_i.

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