CHARACTERIZATION OF SOLID OXIDE FUEL-CELL ELECTRODES BY IMPEDANCE SPECTROSCOPY AND IV-CHARACTERISTICS

被引：68

作者：

VANBERKEL, FPF

VANHEUVELN, FH

HUIJSMANS, JPP

机构：

[1] Netherlands Energy Research Foundation, E.C.N., 1755 ZG Petten

来源：

SOLID STATE IONICS | 1994年 / 72卷 / pt 2期

关键词：

D O I：

10.1016/0167-2738(94)90153-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Impedance spectroscopy has been used to optimize the three-phase boundaries of porous electrodes in solid oxide fuel cells. The three-phase boundaries (TPBs) are the sites where the electrode reaction occurs and their nature is determined by the microstructure of the electrode. The three-phase boundary length (TPBL) of the cathode can be optimized by using small powder particles and a high loading of the particles on the electrolyte surface. The TPBL of the Ni/8YSZ anode can be optimized by using small Ni particles and a high 8YSZ/Ni-particle size ratio.

引用

页码：240 / 247

页数：8

共 8 条

[1] A NONLINEAR LEAST-SQUARES FIT PROCEDURE FOR ANALYSIS OF IMMITTANCE DATA OF ELECTROCHEMICAL SYSTEMS [J].