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Keywords:

  • electrocatalysts;
  • Pt/Pd bimetallic systems;
  • hollow nanorod arrays;
  • electrodeposition
Thumbnail image of graphical abstract

The porous hollow nanorod arrays (PHNRAs) composed of alternating Pt and Pd nanocrystals showed superior electrocatalytic performance, such as high catalytic activity and excellent durability toward methanol electro-oxidation. The special surface and heterogeneous interface effects coming from the nanorod arrays, porous and hollow structures, and alternating Pt and Pd nanocrystals of PtPd PHNRAs are responsible for the significantly enhanced catalytic performance.