Abstract
Facilely engineer binary Pd-based nanocatalysts bounded with abundant surface active areas and tunable compositions have been of vital importance for the development of excellent electrocatalysts towards the electrooxidation of liquid fuel. For obtaining the advantages of high surface active sites, the electrocatalysts should combine both the morphological and component advantages. In this regard, we herein reported a facile PVP-assisted synthetic method to successfully synthesize the unique PdAg nanoflowers (PdAg NFs). Owing to the attractive flower-like structure, such special PdAg NFs with a high surface active area of 43.25m2g−1 possess much better electrocatalytic performances towards ethylene glycol oxidation with the mass and specific activity of 4383.5mAmg−1 and 10.12mAcm−2, 5.5 and 2.4 times higher than those of commercial Pd/C (JM 20% Pd), respectively. The tremendous efforts in this work may open up a new way for maximizing the electrocatalytic performance of catalysts by facilely designing and adjusting their morphologies and the electrocatalysts fabricated in this work can also be well applied as potential anodic catalysts and beyond.
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