The Cover Feature displays a new method to investigate the potential screening at charged electrodes immersed in ionic liquids (ILs) by in situ X‐ray photoelectron spectroscopy. Using binding energy shifts under voltage bias with different ILs combined with Pt and Au electrodes, asymmetric potential screening effects could be attributed to specific attractive ion‐metal interactions and ion size effects. Our approach allows for unraveling interfacial properties of electrodes and ILs under clean ultra‐high vacuum condition. More information can be found in the Communication by F. Greco et al. on page 1365 in Issue 12, 2019 (DOI: 10.1002/open.201900211).

中文翻译：

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封面功能：利用原位X射线光电子能谱法对电极/离子液体界面进行电位筛选（ChemistryOpen 12/2019）

封面功能显示了一种新方法，可通过原位X射线光电子能谱法研究浸没在离子液体（IL）中的带电电极的电势筛选。通过在电压偏置下结合不同的IL和Pt和Au电极使用结合能转移，不对称的电势屏蔽效应可以归因于特定的有吸引力的离子-金属相互作用和离子尺寸效应。我们的方法允许在干净的超高真空条件下揭示电极和IL的界面特性。有关更多信息，请参见F. Greco等的《通讯》。就在第12页1365，2019（DOI：10.1002 / open.201900211）。