Abstract
For the first time, a magnetic field strategy was introduced in obtaining graphene supported porous Pt-Ni alloying nanoparticles with predominant (111) facets as efficient catalysts for enhancing electrocatalytic oxygen reduction. For the first time, we developed porous Pt-Ni alloying nanoparticles with predominant (111) facets under intense magnetic fields. Electrochemical analysis revealed that the Pt-Ni alloying nanoparticles obtained at 2 Tesla exhibited a superior catalytic activity and durability for oxygen reduction reaction. This work demonstrated that the imposition of intense magnetic field could be considered as a new approach for developing efficient alloying electrocatalysts with preferential facets.
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