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My group works in the field of soft condensed matter and statistical physics and we are particularly interested in electrolyte systems and biological modeling. We have a strong background in studying structure and ordering transitions in complex many-body systems and in the development and application of classical density functional theory (DFT).

In particular, we study

      Our research is supported by the German Research Foundation (DFG) by a project on Capacitive density functional theory for structure and screening in ionic fluids and electric double layers with applications in sustainability.

Project description via

Figure 1. Sketch of an electric double layer (EDL). A positively charged flat electrode is in contact with an electrolyte solution, where the mobile ionic charges arrange themselves to screen the charges on the electrode. One can distinguish between a close layer of counter ions (Helmholtz layer) and a diffuse layer.

Figure 2. Sketch of multi-scale supercapacitor model. Typical length scales are (from the left to the right) 0.3 nm particle size, 1-10 nm pore width, 1 mm electrode size.

Figure 3. Snapshot of a system of active Brownian disks. The magnification window shows structures that originate form the disk's activity.

© A. Härtel (2023)