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Related Experiment Video

Updated: Feb 4, 2026

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids

Published on: August 23, 2018

Atomic Surface Segregation and Structural Characterization of PdPt Bimetallic Nanoparticles.

Carlos A Rodríguez-Proenza¹, Juan P Palomares-Báez², Marco A Chávez-Rojo³

¹Posgrado en Ciencia e Ingeniería de Materiales, Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Campus Juriquilla, Santiago de Querétaro 76230, Qro., Mexico. carlosalbertorodriguezproenza@gmail.com.

Materials (Basel, Switzerland)

|October 4, 2018

Summary

Palladium-platinum (PdPt) alloyed nanoparticles were synthesized and characterized, revealing an alloy structure. Molecular dynamics simulations explored their structural stability and surface segregation trends.

Keywords:

PdPt alloys bimetallic nanoparticles electron microscopy molecular dynamics simulation nanostructures

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Published on: June 23, 2022

Area of Science:

Materials Science
Nanotechnology
Catalysis

Background:

Bimetallic nanoparticles exhibit unique properties due to synergistic effects.
Their catalytic performance often surpasses monometallic counterparts.
Nanoparticle structure is influenced by synthesis and component miscibility.

Purpose of the Study:

Synthesize and characterize Palladium-Platinum (PdPt) alloyed nanoparticles.
Investigate the structural stability and surface segregation of PdPt nanoparticles using simulations.
Understand the relationship between synthesis, structure, and properties.

Main Methods:

Polyol method for synthesizing PdPt alloyed-bimetallic nanoparticles (NPs).
Spherical aberration (Cs)-corrected scanning transmission electron microscopy (STEM) for characterization.
High-angle annular dark-field (HAADF)-STEM imaging.
Molecular dynamics (MD) simulations for structural stability and segregation analysis.

Main Results:

PdPt alloyed NPs were successfully synthesized with an average size of 8.2 nm.
HAADF-STEM images confirmed an alloy structure.
MD simulations provided insights into structural stability and atomic surface segregation trends.

Conclusions:

The polyol method is effective for creating PdPt alloyed nanoparticles.
The synthesized nanoparticles possess an alloyed structure.
MD simulations are valuable for predicting nanoparticle behavior and stability.