Electrification of the transport sector and the transition towards renewable energy solutions is crucial in the race towards cutting the greenhouse gas emissions. While battery electric vehicles are already leading the way, an important part of the electrification puzzle will be fuel cell electric vehicles . One of the main barriers preventing mass adoption of proton exchange membrane fuel cell (PEMFC) technology remains the high-cost of the electrocatalyst material . Due to the inherently sluggish oxygen reduction reaction (ORR), a large amount of platinum (Pt) is required, which would represent over 50% of the total membrane electrode assembly (MEA) manufacturing costs 3 making it also the highest cost contributor to the entire stack . In addition, Pt is a low earth abundancy, expensive critical raw material, which is limited in supply. In order to achieve significant cost reductions the amount of Pt in the cathode electrocatalyst must be reduced. High activity, high electrochemically active surface area (ECSA) as well as high durability are all necessary for achieving significant improvements .