Three-dimensional reconstruction of porous LSCF cathodes

被引：204
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
收藏
页码：B214 / B217
页数：4
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