The Polarization of Molten Carbonate Fuel Cell Electrodes I . Analysis of Steady‐State Polarization Data
The Polarization of Molten Carbonate Fuel Cell Electrodes I . Analysis of Steady‐State Polarization Data
复制标题
DOI：
10.1149/1.2085473
复制
发表时间：
1991-12
影响因子：
3.9
通讯作者：
C. Yuh;J. Selman
中科院分区：
文献类型：
--
作者：
C. Yuh;J. Selman
本文报道了在600 ~ 700°C之间不同气体成分下测量的小型微分转换熔融碳酸盐燃料电池（3cm {sup 2}）的稳态极化。采用多元线性回归将实验数据关联起来，并推断燃料电池电极的限速过程。分析表明，阳极和阴极主要是在700°C和低分压CO{sub 2}的混合控制下进行的。由于其非常快的动力学，阳极在正常操作条件下不表现出电荷转移控制。超氧化物机制似乎是燃料电池阴极的主要反应。
This paper reports on the stationary polarization of small, differential conversion, molten carbonate fuel cells (3 cm{sup 2}) that was measured between 600 and 700{degrees} C under various gas compositions. Multiple linear regression was used to correlate the experimental data and to infer the rate-limiting processes in fuel cell electrodes. The analysis indicates that both the anode and the cathode are primarily under mixed control at 700{degrees} C at low partial pressures of CO{sub 2}. The anode does not exhibit charge-transfer control under normal operating conditions, due to its very fast kinetics. The superoxide mechanism appears to be the dominant reaction in a fuel cell cathode.