Fabrication of Gold-Platinum Nanoalloy by High-Intensity Laser Irradiation of Solution

Takahiro Nakamura, Yuliati Herbani, Shunichi Sato

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Gold-platinum (Au-Pt) solid solution nanoalloys were fabricated by high-intensity femtosecond laser irradiation of mixed solution of auric and platinum ions. Photo-absorption spectra of prepared solutions were measured by UV-visible spectrophotometer before and after irradiation. The fabricated particles were characterized by TEM and XRD. While two representative diffraction peaks are commonly observed between peak the positions of pure bulk gold and platinum for bulk because of a large immiscibility gap in a Au-Pt binary system, only a single diffraction peak was detected for single-nanometer sized Au-Pt nanoalloy particles fabricated by high-intensity laser irradiation of mixed solution of auric and platinum ions with the concentration of 5.0×10-4 M. This finding demonstrates that solid solution Au-Pt nanoalloys are successfully fabricated only by high-intensity laser irradiation of aqueous solution without any chemicals.

Original languageEnglish
Title of host publicationSupplemental Proceedings
Subtitle of host publicationMaterials Fabrication, Properties, Characterization, and Modeling
PublisherJohn Wiley and Sons Inc.
Pages3-8
Number of pages6
Volume2
ISBN (Electronic)9781118062142
ISBN (Print)9781118029466
DOIs
Publication statusPublished - 2011 Apr 20

Keywords

  • Au-Pt nanoalloy
  • Femtosecond laser
  • Liquid

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Fabrication of Gold-Platinum Nanoalloy by High-Intensity Laser Irradiation of Solution'. Together they form a unique fingerprint.

  • Cite this

    Nakamura, T., Herbani, Y., & Sato, S. (2011). Fabrication of Gold-Platinum Nanoalloy by High-Intensity Laser Irradiation of Solution. In Supplemental Proceedings: Materials Fabrication, Properties, Characterization, and Modeling (Vol. 2, pp. 3-8). John Wiley and Sons Inc.. https://doi.org/10.1002/9781118062142.ch1