THE EFFECT OF OXIDANT COMPOSITION ON THE PERFORMANCE OF MOLTEN CARBONATE FUEL-CELLS

被引：19

作者：

KUNZ, HR

MURPHY, LA

机构：

[1] Int Fuel Cells Corp, South Windsor,, CT, USA, Int Fuel Cells Corp, South Windsor, CT, USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1988年 / 135卷 / 05期

关键词：

CARBON DIOXIDE - CATHODES - Performance - ELECTROLYTES - OXIDES - Composition Effects;

D O I：

10.1149/1.2095891

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Theoretical and experimental studies were performed to determine the effect of oxidant composition on the overpotential of molten carbonate fuel cell cathodes. Pressure level, carbon dioxide and oxygen mole fractions, the diluent species (nitrogen vs. helium), and electrolyte content were varied. The overpotential was found to increase with decreasing carbon dioxide and oxygen mole fraction in most cases, due to an increase in gas-phase diffusional resistance within the cathode and its current collector. The effective carbon dioxide and oxygen reaction orders for current at constant overpotential depend on oxidant composition, cathode and current collector geometry, and electrolyte content.

引用

页码：1124 / 1131

页数：8

共 18 条

[1] REDUCTION OF OXYGEN IN ALKALI CARBONATE MELTS [J].