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Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
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Palladium-based polyelemental nanoparticles for ethanol oxidation reaction.

Xiaoyu Hou1, Shiqi Yang1, Xianzhuo Lao1

  • 1College of Smart Materials and Future Energy, Fudan University, Shanghai 200438, China. pcchen@fudan.edu.cn.

Nanoscale
|February 11, 2026
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Summary
This summary is machine-generated.

We developed novel palladium-alloy nanocatalysts using colloidal methods for efficient alcohol oxidation in fuel cells. The ternary palladium-gold-silver (PdAuAg) nanoparticles show superior activity and stability compared to commercial catalysts.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Efficient and stable catalysts are crucial for high-performance fuel cells.
  • Anodic oxidation of alcohols is a key process in fuel cell technology.

Purpose of the Study:

  • To synthesize and characterize novel palladium-based alloy nanocatalysts.
  • To evaluate their performance in the electrocatalytic oxidation of alcohols.

Main Methods:

  • Colloidal synthesis of unary, binary, and ternary palladium alloy nanoparticles.
  • Electrochemical characterization including activity and stability tests.
  • Density Functional Theory (DFT) calculations.

Main Results:

  • Ternary PdAuAg nanoparticles demonstrated significantly higher mass activity and stability for ethanol oxidation compared to monometallic Pd and commercial Pd/C and Pt/C catalysts.
  • Alloy formation induced lattice expansion and altered surface coordination, leading to enhanced catalytic properties.
  • DFT calculations confirmed improved reaction kinetics and stability for PdAuAg.

Conclusions:

  • Palladium-alloy nanocatalysts, particularly PdAuAg, offer a promising strategy for developing advanced electrocatalysts for alcohol oxidation.
  • The synergistic effects of alloying elements enhance both activity and durability.
  • This work provides a facile approach for designing high-performance polyelemental nanoparticle catalysts.