 The researchers found that a platinum-free cathode catalyst made of iron thalocyanin monolayers supported on either a pristine graphene or boron-doped graphene substrate was more stable than a platinum-based catalyst under certain conditions. The catalysts were tested for their stability in terms of potential and pH, which are important factors in determining how well a catalyst works in a fuel cell. The researchers found that the iron thalocyanin monolayer supported on a pristine graphene substrate was more stable than the iron thalocyanin monolayer supported on a boron-doped graphene substrate at all potentials and pH values. This suggests that the former may be a better choice for use in a fuel cell. This article was authored by Naomi Helsel and Pabitra Choudhury.