Schematic illustration of a new electrodeposition scheme to obtain noble metal-based high-entropy alloy (HEA) nanoparticles using aqueous electrolyte. Pulsed potential control enables tunable composition during rapid synthesis on various conductive carbon supports, achieving nanoscale and mesoscale mixing.
The versatile electrodeposition strategy offers a pathway for medium-throughput screening in heterogeneous catalysis research.

This work was carried out in the group of Prof. Dr. Matthias Arenz.

Acknowledgement: M. Arenz thanks the ERC Synergy grant DEMI, GA no. 101118768 as well as the DNRF Center for High Entropy Alloy Catalysis (DNRF 149).

References:

• D. Gautam, G. K. H. Wiberg, J. Quinson, D. Wang, C. M. Clausen, R. Rohde, R. Klemmt, J. Rossmeisl, E. Drath Bøjesen, M. Arenz;
  "Noble Metal-Based High Entropy Alloy Nanoparticles Prepared by Pulsed Electrodeposition: An Approach for Medium Throughput Studies"
  Small Structures, accepted for publication; doi:10.1002/sstr.202500666.