How cations affect the electric double layer and the rates and selectivity of electrocatalytic processes
How cations affect the electric double layer and the rates and selectivity of electrocatalytic processes
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DOI：
10.1063/1.5124878
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发表时间：
2019-10-28
影响因子：
4.4
通讯作者：
Li, Xiang
中科院分区：
文献类型：
--
作者：
Waegele, Matthias M.;Gunathunge, Charuni M.;Li, Xiang
电催化是生产可再生燃料和高价值商品化学品的核心。电解质和电极一起决定了液/固界面的催化性能。特别地，电解质的阳离子可以极大地改变许多电催化过程的速率和反应选择性。因此，仔细选择阳离子是设计对所需高价值产品具有高选择性的催化界面的重要步骤。为了做出这样一个明智的选择，关键是要了解阳离子在双电层中的位置以及它们对电催化过程的各种不同的机械影响。在这个角度来看，我们回顾了最近的进展，在理解的双电层，特别关注的界面分布的阳离子和阳离子的水合状态在附近的电极在各种实验条件下。此外，我们总结了不同的方式，阳离子可以改变率和选择性的化学过程在带电接口，并确定可能的未来研究领域在这一领域。由AIP Publishing授权出版。
Electrocatalysis is central to the production of renewable fuels and high-value commodity chemicals. The electrolyte and the electrode together determine the catalytic properties of the liquid/solid interface. In particular, the cations of the electrolyte can greatly change the rates and reaction selectivity of many electrocatalytic processes. For this reason, the careful choice of the cation is an essential step in the design of catalytic interfaces with high selectivity for desired high-value products. To make such a judicious choice, it is critical to understand where in the electric double layer the cations reside and the various distinct mechanistic impacts they can have on the electrocatalytic process of interest. In this perspective, we review recent advances in the understanding of the electric double layer with a particular focus on the interfacial distribution of cations and the cations' hydration states in the vicinity of the electrode under various experimental conditions. Furthermore, we summarize the different ways in which cations can alter the rates and selectivity of chemical processes at electrified interfaces and identify possible future areas of research in this field. Published under license by AIP Publishing.