Nappini S, D'Amario L, Favaro M, Dal Zilio S, Salvador F, Betz-Güttner E, Fondacaro A, Píš I, Romanzin L, Gambitta A, Bondino F, Lazzarino M, Magnano E
IOM CNR Laboratorio TASC, 34149 Basovizza, TS, Italy.
Freie Universität Berlin, Department of Physics Arnimallee 14, 14195 Berlin-Dahlem, Germany.
Rev Sci Instrum. 2021 Jan 1;92(1):015115. doi: 10.1063/5.0025326.
The beamline for advanced dichroism of the Istituto Officina dei Materiali-Consiglio Nazionale delle Ricerche, operating at the Elettra synchrotron in Trieste (Italy), works in the extreme ultraviolet-soft x-ray photon energy range with selectable light polarization, high energy resolution, brilliance, and time resolution. The beamline offers a multi-technique approach for the investigation of the electronic, chemical, structural, magnetic, and dynamical properties of materials. Recently, one of the three end stations has been dedicated to experiments based on electron transfer processes at the solid/liquid interfaces and during photocatalytic or electrochemical reactions. Suitable cells to perform soft x-ray spectroscopy in the presence of liquids and reagent gases at ambient pressure were developed. Here, we present two types of static cells working in transmission or in fluorescence yield and an electrochemical flow cell that allows us to carry out cyclic voltammetry in situ and electrodeposition on a working electrode and to study chemical reactions under operando conditions. Examples of x-ray absorption spectroscopy measurements performed under ambient conditions and during electrochemical experiments in liquids are presented.
位于的里雅斯特（意大利）的Elettra同步加速器上运行的意大利国家研究委员会材料技术研究所先进二色性光束线，在极紫外-软X射线光子能量范围内工作，具有可选择的光偏振、高能量分辨率、高亮度和时间分辨率。该光束线提供了一种多技术方法来研究材料的电子、化学、结构、磁性和动力学性质。最近，三个终端站之一专门用于基于固体/液体界面以及光催化或电化学反应过程中的电子转移过程的实验。开发了适用于在常压下存在液体和反应气体的情况下进行软X射线光谱分析的样品池。在此，我们展示了两种在透射或荧光产率模式下工作的静态样品池以及一种电化学流通池，该流通池使我们能够原位进行循环伏安法和在工作电极上进行电沉积，并在操作条件下研究化学反应。还展示了在环境条件下以及在液体中的电化学实验期间进行的X射线吸收光谱测量的示例。
