"Synthesis of PtNi Nanoparticles to Accelerate the Oxygen Reduction Rea" by Gerard M. Leteba, Sarah L. George et al.
We report the synthesis of core-shell Ni−Pt nanoparticles (NPs) with varying degrees of crystallographic facets and surface layers rich in Pt via a seed-mediated thermolytic approach. Mixtures of different surfactants used during synthesis resulted in preferential surface passivation, which in turn dictated the size, chemical composition, and geometric evolution of these PtNi NPs. Electrochemical investigations of these pristine core-shell Ni−Pt structures in the oxygen reduction reaction (ORR) show that their catalytic functionalities outperform the commercial Pt/C reference catalyst. The...
Source: uow.edu.au