ABSTRACT

The interface of ionic liquids (ILs) with solid surfaces is of pivotal interest for many applications, ranging from sensors, lubrication, separation technology, and electronics to electrochemistry and catalysis. We present a short review on ultrathin layers of ionic liquids on metal surfaces using a surface science approach. We mainly focus on specific examples of imidazolium-based ionic liquids on Ag(111) and Au(111) studied by angle-resolved X-ray photoelectron spectroscopy, and relate the obtained results to existing literature. We address a variety of phenomena on the molecular level, namely, (i) the adsorption, growth and wetting behavior of ILs, (ii) the thermal stability and desorption of ILs, (iii) exchange processes of anions and cations at the IL/solid interface, and (iv) the replacement of ILs from the IL/solid interface by porphyrins.

摘要

离子液体（IL）与固体表面的界面对于许多应用至关重要，从传感器，润滑，分离技术，电子技术到电化学和催化，应运而生。我们使用表面科学方法对金属表面上离子液体的超薄层进行了简短回顾。我们主要关注通过角分辨X射线光电子能谱研究的在Ag（111）和Au（111）上的咪唑基离子液体的具体实例，并将获得的结果与现有文献联系起来。我们在分子水平上解决了多种现象，即（i）IL的吸附，生长和润湿行为，（ii）IL的热稳定性和解吸，（iii）IL /上阴离子和阳离子的交换过程固体界面，以及（iv）用卟啉替代IL /固体界面中的IL。