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Updated: Jun 18, 2026

Synthesis of Bimetallic Pt/Sn-based Nanoparticles in Ionic Liquids
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Published on: August 23, 2018

Structural evolution in the nanoscale diffusion process: a Au-Sn bimetallic system.

Kuai Yu1, Tao Yao, Zhiyun Pan

  • 1Department of Nanomaterials and Nanochemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, P. R. China.

Dalton Transactions (Cambridge, England : 2003)
|November 19, 2009
PubMed
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This study reveals the sequential formation of stable gold-tin (Au-Sn) nanocrystals with core/shell structures during nanoscale diffusion. Understanding this evolution guides the design of novel bimetallic phases for various applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Physical Chemistry

Background:

  • Bimetallic systems are crucial for advanced materials.
  • Understanding nanoscale diffusion is key to controlling material structure.
  • Gold-tin (Au-Sn) systems offer unique properties for various applications.

Purpose of the Study:

  • To elucidate the structural evolution of Au-Sn bimetallic systems during nanoscale diffusion.
  • To investigate the formation mechanisms of Au-Sn intermetallic compounds and their core/shell structures.
  • To provide insights for designing novel bimetallic phases and core/shell structures.

Main Methods:

  • X-ray absorption fine structure (XAFS) spectroscopy
  • X-ray diffraction (XRD)
  • High-resolution transmission electron microscopy (HRTEM)

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Last Updated: Jun 18, 2026

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

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Aqueous Synthesis of Plasmonic Gold-Tin Alloy Nanoparticles
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Published on: March 15, 2024

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Published on: February 10, 2023

  • Energy dispersive X-ray spectrometry (EDX)

    • Main Results:

    • Demonstrated sequential formation of stable Au/AuSn, AuSn, AuSn/AuSn(2), and AuSn(2) nanocrystals.
    • Identified core/shell structures rather than disordered alloys.
    • Detailed composition and structure of the Au-Sn bimetallic system were obtained.

    Conclusions:

    • The study clarifies the structural evolution during Au-Sn nanoscale diffusion.
    • The findings facilitate the design of novel bimetallic phases and core/shell structures.
    • This mechanism is applicable to other noble metal and IIIA/IVA element combinations.