Next-generation intermetallic platinum-alloy catalysts for proton exchange membrane fuel cells
Proton exchange membrane fuel cells (PEMFCs) are important in the race towards cutting greenhouse gas emissions in both the transport and energy sectors. For their efficient operation, PEMFCs require large quantities of scarce and expensive platinum present in the catalyst. The ERC-funded StableCat project identified crucial weaknesses in the commercial platinum-based catalysts and obtained novel atomic-scale structural understanding. With that, researchers devised a new synthesis strategy that enables them to combine three crucial pillars within the same catalyst material – high platinum surface area, catalytic activity and durability. This new strategy also enabled them to achieve a 50 % reduction of required platinum for efficient PEMFC operation already today, with the full potential yet to be unleashed.
Fields of science
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