Recent progress in CO2 reduction using bimetallic electrodes containing copper
Recent progress in CO2 reduction using bimetallic electrodes containing copper
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DOI：
10.1016/j.elecom.2022.107212
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发表时间：
2022-01-13
影响因子：
5.4
通讯作者：
Symes, Mark D.
中科院分区：
文献类型：
--
作者：
Dickinson, Hannah L. A.;Symes, Mark D.
大气中二氧化碳水平的上升促使人们进行了大量研究工作，旨在从可再生能源中产生能源，以便消耗这种能源不会导致大气中二氧化碳的进一步增加。同时，大气中的CO2是储存可再生能源的有用原料，特别是通过可再生能源提供动力的CO2的电还原产生碳氢化合物燃料，燃烧时不会增加大气中的净CO2水平。为了将这种由CO2产生烃的可再生动力生产变为现实，需要用于二氧化碳还原的改进的电催化剂。例如，Cu是唯一一种对通过多于两个电子还原的CO2还原产物表现出可观的法拉第效率的单一金属，但是纯Cu对于该方法不是特别活性或选择性的催化剂。因此，人们对使用Cu与其他金属的组合来制造CO2催化剂产生了相当大的兴趣，以便找到可以将CO2还原为诸如甲烷、甲醇、乙醇等产物的系统。在这篇小综述中，我们概述了最近的进展，使用由铜和各种其他金属组合而成的阴极，特别关注过去两年来的研究，超越了两个电子的还原产物。
Rising levels of carbon dioxide in the atmosphere have precipitated considerable research efforts aimed at generating energy from renewable sources, such that consuming this energy does not lead to further increases in atmospheric CO2. Simultaneously, atmospheric CO2 represents a useful feedstock for the storage of renewablygenerated energy, in particular through electroreduction of CO2 powered by renewables to give hydrocarbon fuels that when burned do not increase net CO2 levels in the atmosphere. In order to bring such renewablepowered production of hydrocarbons from CO2 to reality, improved electrocatalysts for carbon dioxide reduction are required. For example, Cu is the only single metal that demonstrates appreciable Faradaic efficiency for CO2 reduction products that are reduced by more than two-electrons, but pure Cu is not an especially active or selective catalyst for this process. Hence there has been considerable interest in making bimetallic catalysts using Cu in combination with other metals in order to find systems that can reduce CO2 to products such as methane, methanol, ethanol and beyond. In this minireview, we give an overview of recent progress in CO2 electroreduction using bimetallic cathodes composed of copper and various other metals in combination, with a particular focus on studies going beyond two-electron reduction products from the last two years.