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![Shining light on electrochemistry: a synchrotron-based X-ray spectroscopic interrogation](https://image.oaes.cc/4f003277-100d-48e5-b151-44fb2e33ed88/cs3049.fig.1.jpg)
Figure 1. Imbedded interface-the electrical double layer. (A) schematic of the classical Gouy-Chapman-Stern model. The IHP, OHP and diffuse layer are indicated. The potential φ is shown with respect to the distance from the surface. The yellow and purple denote the cations and anions, respectively; (B) schematic of the modulation setup consisting of piezo-actuated chopped incoming X-ray and