Three-dimensional reconstruction of porous LSCF cathodes

被引：206

作者：

Gostovic, D. ^{[1
]}

Smith, J. R. ^{[1
]}

Kundinger, D. P. ^{[1
]}

Jones, K. S. ^{[1
]}

Wachsman, E. D. ^{[1
]}

机构：

[1] Univ Florida, US Dept Energy High Temp Electrochem Ctr, Gainesville, FL 32611 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2007年 / 10卷 / 12期

关键词：

D O I：

10.1149/1.2794672

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this initial study the electrochemically active region of a La0.8Sr0.2Co0.2Fe0.8O3-delta (LSCF) cathode was reconstructed in three dimensions using a focused ion beam/scanning electron microscope. The reconstructed volume totaled 1065 mu m(3) from the free air surface to the dense yttria-stabilized zirconia electrolyte interface. Various microstructural properties were measured, including overall porosity, closed porosity, graded porosity, surface area, tortuosity, triple-phase boundary length, and pore size. Electrochemical impedance spectroscopy data was correlated to microstructure. (c) 2007 The Electrochemical Society.

引用

页码：B214 / B217

页数：4

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