Surface-modulated palladium-nickel icosahedra as high-performance non-platinum oxygen reduction electrocatalysts.

ABSTRACT: The search for high-performance non-platinum (Pt) electrocatalysts is the most challenging issue for fuel cell technology. Creating bimetallic non-Pt nanocrystals (NCs) with core/shell structures or alloy features has widely been explored as the most effective way for enhancing their electrochemical properties but still suffered from undesirable performance due to the limited interactions between the different components. By addressing the above issue, we report on a new class of active and stable bimetallic non-Pt electrocatalysts with palladium (Pd) icosahedra as the core and nickel (Ni) decorating the surface toward cathodic oxygen reduction reaction (ORR) under alkaline conditions. The optimized Pd₆Ni icosahedra with unique interaction between an icosahedral Pd core and surf

SUBMITTER: Feng Y 

PROVIDER: S-EPMC6044738 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature