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Updated: Jan 4, 2026

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
Published on: June 25, 2018
Structure Evolution of Binary Ligands on Nanoparticles Triggered by Competition between Adsorption Reaction and Phase
This study reveals how ligand-adsorption kinetics and nanoparticle curvature control ligand shell patterns. Controlling these factors allows for precise engineering of nanoparticle surfaces for advanced applications.
Area of Science:
- Surface Chemistry
- Materials Science
- Nanotechnology
Background:
- Nanoparticle (NP) interfacial properties are dictated by their ligand shell composition and structure.
- Factors influencing ligand shell structures, particularly adsorption kinetics, remain unclear and debated.
Purpose of the Study:
- To investigate the dynamic evolution of binary ligands on NP surfaces.
- To understand how ligand-adsorption kinetics and NP curvature affect ligand shell patterns.
Main Methods:
- Development of an adsorption-migration reaction model for binary ligands on NPs.
- Analysis of ligand-adsorption and phase-separation rates.
- Simulation of NP curvature effects on ligand shell formation.
Main Results:
- Ligand shell patterns (Janus, patchy, stripe, island) depend on adsorption and phase-separation rates.
- Different kinetic pathways lead to distinct pattern formations based on ligand properties.
- Increased NP curvature accelerates ligand dynamics, favoring ordered Janus or stripe patterns.
Conclusions:
- Controlling reaction kinetics is crucial for regulating NP ligand shell composition and morphology.
- Findings provide guidance for experimental fabrication of NPs with tailored functional surfaces.
- This research offers principles for designing novel NPs for diverse nanoscience applications.
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