B13: Plasma-derived nanocatalysts forelectrochemical hydrogen evolution

Principal Investigators: K. Tschulik

Team

Tschulik, Kristina (Principal Investigator)

Boitel-Aullen, Gabriel (PostDoc)

Description

The design of highly efficient and durable bimetallic nanoscale electrocatalysts for the hydrogen evolution reaction (HER) is desired to replace the Pt-based catalysts used today. Here, we fabricate such nanocatalysts from micelle-contained metal salt solutions by gas and liquid phase atmospheric pressure plasma induced nucleation. This combination will be used to produce nanoparticles of desired composition, shape and configuration. Their electrocatalytic HER activity will be measured and assigned to the respective catalyst properties, allowing us to identify property-activity relations and, thus, provide a route to efficiently design improved electrocatalysts and plasma-based fabricate thereof.

Publications

• Creation of tungsten and platinum nanoparticles from nanosecond plasmas in water
  O. Krettek, P. Pottkämper, P. Cignoni, K. Tschulik, A. von Keudell
  J. Phys. D (2024) accepted
  
• Validation of in situ diagnostics for the detection of OH and H2O2 in liquids treated by a humid atmospheric pressure plasma jet
  S Schüttler, L Jolmes, E Jeß, K Tschulik, J Golda
  Plasma. Process Polym. 2023, e2300079
  Repository: https://rdpcidat.rub.de/node/720