Anion Exchange Membrane Fuel Cell Performance in the Presence of Carbon Dioxide: An Investigation into the Self-Purging Mechanism
Anion Exchange Membrane Fuel Cell Performance in the Presence of Carbon Dioxide: An Investigation into the Self-Purging Mechanism
复制标题
二氧化碳存在下阴离子交换膜燃料电池的性能：自净化机制的研究
DOI：
10.1149/2.0801912jes
复制
发表时间：
2019
影响因子：
3.9
通讯作者：
W. Chiu
中科院分区：
文献类型：
--
作者：
J. Wrubel;A. Peracchio;B. Cassenti;Kyle N. Grew;W. Chiu
在这项研究中，我们调查了常见的现象，即二氧化碳（CO2）在阴极气流（如空气）的吸收和释放的阴离子交换膜燃料电池（AEMFC）。通常被描述为“自净化”，由于排放的二氧化碳气体从AEMFC与增加的电流，这一过程的机制仍然是未知的。在这里，我们提供的证据表明，这种自清洗发生通过电化学机制，其中碳酸氢根和碳酸根离子直接参与氢氧化反应。在确定了自清洗机制的性质后，我们提出了一系列的参数研究，调查CO2对AEMFC的基本影响，并讨论了某些操作参数，可以操纵，以提高电池性能。
In this study we investigate the commonly observed phenomenon whereby carbon dioxide (CO 2) in the cathode gas stream (eg, air) is absorbed and released from the anion exchange membrane fuel cell (AEMFC). Often described as" self-purging" due to the emission of the CO 2 gas from the AEMFC with increased current, the mechanisms of this process are still largely unknown. Herein we provide evidence that this self-purging occurs through an electrochemical mechanism, in which bicarbonate and carbonate ions directly participate in the hydrogen oxidation reaction. After determining the nature of the self-purging mechanism, we present a series of parametric studies that investigate the fundamental effects of CO 2 on the AEMFC, and discuss certain operating parameters that can be manipulated to improve cell performance.
碱性聚合物电解质膜燃料电池参比电极放置的实验研究
影响因子：
6.6
作者：
Zeng R
通讯作者：
Zeng R