Tuesday publication update! Oxygen reduction reactions are of particular interest in research to fuel cell cathodes. In this paper, the catalytic performance of platinum alloy nanoparticles is investigated using the #AtmosphereAX system at atomic resultion in an electron microscope. Initial segregation of a thin platinum, rather than cobalt oxide, surface layer is observed while the intermetallic core is ordered, followed by the layer-by-layer growth of a platinum shell via Ostwald ripening during the oxygen annealing treatment. These findings are expected to be useful for the future design of structured platinum alloy nanocatalysts.
Read the full paper here:
https://www.doi.org/10.1038/s41467-017-00161-y
#Protochips #insitucatalysis #electronmicroscopy
