Simulation of mass transport in SOFC composite electrodes

被引：19

作者：

Cannarozzo, Marco ^{[1
]}

Del Borghi, Adriana ^{[1
]}

Costamagna, Paola ^{[1
]}

机构：

[1] Univ Genoa, DICHEP, I-16145 Genoa, Italy

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2008年 / 38卷 / 07期

关键词：

solid oxide fuel cell; composite electrodes; cermets; microstructure;

D O I：

10.1007/s10800-008-9527-1

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The anodes used in SOFCs are composites, formed by a mixture of nickel and YSZ particles. This paper presents a model for this type of electrode, taking mass transport effects into account. The effect of the operating conditions, such as temperature and pressure, is discussed. Also, the effect of the choice of the geometrical parameters, such as electrode thickness and particle radius, on the electrode performance is analysed in detail. In particular, the electrode losses display a minimum for a well-defined radius of the electrode particles, which is related to a trade-off between activation and concentration losses.

引用

页码：1011 / 1018

页数：8

共 14 条

[1] Correlated resistor network study of porous solid oxide fuel cell anodes [J].