Electrochemical Analysis of Biogas Fueled Anode Supported SOFC

被引：13

作者：

Leonide, A. ^{[1
]}

Weber, A. ^{[1
]}

Ivers-Tiffee, E. ^{[1
]}

机构：

[1] KIT, IWE, D-76131 Karlsruhe, Germany

来源：

SOLID OXIDE FUEL CELLS 12 (SOFC XII) | 2011年 / 35卷 / 01期

关键词：

DECONVOLUTION; GASIFICATION; CORN;

D O I：

10.1149/1.3570296

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this study, the performance of anode supported solid oxide fuel cells (ASC) operated with biogas derived from corn silage (biogas) is analyzed. The fuel gas is produced by supercritical water gasification at the pilot plant VERENA operated at the Karlsruhe Institute of Technology. Current voltage characteristics show a slightly (6-14%) lower power density during biogas operation compared to hydrogen fueled SOFC single cells. Impedance analysis reveals an increased activation polarization resistance and an additional polarization process at frequencies below 2 Hz during biogas operation. These two effects contribute to an overall higher polarization resistance of the biogas fueled ASC resulting in a lower power output.

引用

页码：2961 / 2968

页数：8

共 15 条

[1] Electrode kinetics of porous mixed-conducting oxygen electrodes [J].