Investigation of degradation processes in High Entropy Alloy nanoparticles for fuel cell applications

Via operando SAXS/WAXS/total scattering, we plan to gain valuable insights into the degradation of High Entropy Alloys which offer promising properties for fuel cell applications. HEAs consisting of PtPdFeCoNi have recently been synthesized in one phase using the incipient wetness synthesis approach. The main aim of this proposal is to investigate the process of leaching and degradation on two different synthesized HEA and compare them to the monometallic Pt counterpart. The results will be accompanied by ICP-MS, STEM-EDS, and IL-TEM to understand the leaching and degradation of these. These mechanisms will be compared to DFT calculations regarding the stability of HEAs.