X-ray irradiation synthesis of PEG-coated Au-Pd nanoparticles

Min Tsang Li, Chang Hai Wang, Sheng Feng Lai, Edwin B L Ong, Y. H. Chen, Chung Kwei Lin, G. Margaritondo, Y. Hwu

Research output: Contribution to journalArticle

2 Citations (Scopus)


We demonstrate that the combination of x-ray irradiation and capping by polyethylene glycol (PEG) produces excellent flexibility in controlling the structure of Au-Pd nanoparticles while preserving their catalytic performance. We specifically adopted two different fabrication methods: co-reduction and seed-assisted reduction. In both cases, precursor composition plays an important role in controlling the phases and size of the bimetallic nanoparticles. The optimal catalytic performance is obtained with the highest Pd concentration and when the nanoparticles consist of a Au core and a Pd shell.

Original languageEnglish
Article number355601
Issue number35
Publication statusPublished - Sep 4 2015


  • alloy nanoparticle
  • Au-Pd
  • catalytic property
  • core-shell structure
  • PEG

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

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  • Cite this

    Li, M. T., Wang, C. H., Lai, S. F., Ong, E. B. L., Chen, Y. H., Lin, C. K., Margaritondo, G., & Hwu, Y. (2015). X-ray irradiation synthesis of PEG-coated Au-Pd nanoparticles. Nanotechnology, 26(35), [355601]. https://doi.org/10.1088/0957-4484/26/35/355601