Journal
GREEN ENERGY & ENVIRONMENT
Volume 3, Issue 4, Pages 352-359Publisher
KEAI PUBLISHING LTD
DOI: 10.1016/j.gee.2018.07.004
Keywords
Tri-metallic PtPdNi; Mesoporous structures; Nanospheres; Oxygen reduction reaction; Electrocatalysts
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Funding
- National Natural Science Foundation of China [21601154, 21776255, 21701141]
- Natural Science Foundation of Zhejiang Province [LQ18B010005]
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Platinum (Pt)-based multi-metallic nanostructures show great promise as electrocatalysts for the oxygen reduction reaction (ORR) in fuel cell cathodes. Herein, we report a simple, one-step surfactant-directed synthetic strategy to directly synthesize tri-metallic PtPdNi mesoporous nanospheres (PtPdNi MNs) in a high yield. The synthesis could be accomplished in aqueous solution at mild reaction temperature (40 degrees C) without needing any organic solvent, yielding well-dispersed PtPdNi MNs with uniform shape and narrow size distribution. Benefitting from their unique mesoporous and highly open structure and tri-metallic composition, the as-synthesized PtPdNi MNs demonstrate superior catalytic activity and stability for ORR in acidic solution in comparison with PtPdNi nanodendrites (PtPdNi NDs), PtPd MNs and commercial Pt/C catalyst. The present approach may open a reliable path to the design of advanced electrocatalysts with desired performance. (C) 2018, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V.
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