Ceramic microstructure and oxygen permeability of SrCo(Fe,M)O3-δ (M = Cu or Cr) perovskite membranes

被引：112

作者：

Kharton, VV ^{[1
]}

Tikhonovich, VN ^{[1
]}

Li, SB ^{[1
]}

Naumovich, EN ^{[1
]}

Kovalevsky, AV ^{[1
]}

Viskup, AP ^{[1
]}

Bashmakov, IA ^{[1
]}

Yaremchenko, AA ^{[1
]}

机构：

[1] Belarusian State Univ, Inst Physicochem Problems, Minsk 220080, BELARUS

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1998年 / 145卷 / 04期

关键词：

D O I：

10.1149/1.1838467

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Stabilization of the cubic perovskite phase was demonstrated in the SrCo0.90-xFe0.10CrxO3-delta oxide system at x greater than or equal to 0.03. Oxygen permeability of SrCo(Fe, Cr)O3-delta solid solutions was independent of chromium content at x = 0.01-0.05. It was found that reducing ceramic grain size dimensions resulted in decreasing thermal expansion electrical conductivity, and oxygen permeability of SrCo(Fe, Cu)O3-delta ceramic membranes. Oxygen transport through SrCo(Fe, M)O3-delta ceramics was shown to be limited by both the bulk ionic conductivity and oxygen exchange currents. The limiting effect of the membrane permeate-side surface on the permeation was higher in comparison with that on the feed-side surface.

引用

页码：1363 / 1373

页数：11

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