Ziv Noga, Mustain William E, Dekel Dario R
The Wolfson Department of Chemical Engineering and The Nancy & Stephan Grand Technion Energy Program (GTEP), Technion-Israel Institute of Technology, Haifa, 3200003, Israel.
Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA.
ChemSusChem. 2018 Apr 9;11(7):1136-1150. doi: 10.1002/cssc.201702330. Epub 2018 Mar 15.
Over the past 10 years, there has been a surge of interest in anion-exchange membrane fuel cells (AEMFCs) as a potentially lower cost alternative to proton-exchange membrane fuel cells (PEMFCs). Recent work has shown that AEMFCs achieve nearly identical performance to that of state-of-the-art PEMFCs; however, much of that data has been collected while feeding CO -free air or pure oxygen to the cathode. Usually, removing CO from the oxidant is done to avoid the detrimental effect of CO on AEMFC performance, through carbonation, whereby CO reacts with the OH anions to form HCO and CO . In spite of the crucial importance of this topic for the future development and commercialization of AEMFCs, unfortunately there have been very few investigations devoted to this phenomenon and its effects. Much of the data available is widely spread out and there currently does not exist a resource that researchers in the field, or those looking to enter the field, can use as a reference text that explains the complex influence of CO and HCO /CO on all aspects of AEMFC performance. The purpose of this Review is to summarize the experimental and theoretical work reported to date on the effect of ambient CO on AEMFCs. This systematic Review aims to create a single comprehensive account of what is known regarding how CO behaves in AEMFCs, to date, as well as identify the most important areas for future work in this field.
在过去的10年里，阴离子交换膜燃料电池（AEMFCs）作为质子交换膜燃料电池（PEMFCs）潜在的低成本替代品，引发了人们极大的兴趣。最近的研究表明，AEMFCs的性能几乎与最先进的PEMFCs相同；然而，这些数据大多是在向阴极输送无CO的空气或纯氧时收集的。通常，从氧化剂中去除CO是为了避免CO对AEMFCs性能产生有害影响，这种影响是通过碳酸化作用实现的，即CO与OH阴离子反应形成HCO₃⁻和CO₃²⁻。尽管这个话题对于AEMFCs的未来发展和商业化至关重要，但遗憾的是，针对这一现象及其影响的研究非常少。现有的许多数据分布广泛，目前还没有一本可供该领域研究人员或有意进入该领域的人员用作参考文本的书籍，来解释CO和HCO₃⁻/CO₃²⁻对AEMFCs性能各个方面的复杂影响。本综述的目的是总结迄今为止报道的关于环境CO对AEMFCs影响的实验和理论工作。本系统综述旨在对迄今为止已知的CO在AEMFCs中的行为进行单一全面的阐述，并确定该领域未来工作的最重要领域。
