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Shuttling single metal atom into and out of a metal nanoparticle

Author

Listed:
  • Shuxin Wang

    (Carnegie Mellon University
    Anhui University)

  • Hadi Abroshan

    (Carnegie Mellon University)

  • Chong Liu

    (University of Pittsburgh)

  • Tian-Yi Luo

    (University of Pittsburgh)

  • Manzhou Zhu

    (Anhui University)

  • Hyung J. Kim

    (Carnegie Mellon University
    Korea Institute for Advanced Study)

  • Nathaniel L. Rosi

    (University of Pittsburgh)

  • Rongchao Jin

    (Carnegie Mellon University)

Abstract

It has long been a challenge to dope metal nanoparticles with a specific number of heterometal atoms at specific positions. This becomes even more challenging if the heterometal belongs to the same group as the host metal because of the high tendency of forming a distribution of alloy nanoparticles with different numbers of dopants due to the similarities of metals in outmost electron configuration. Herein we report a new strategy for shuttling a single Ag or Cu atom into a centrally hollow, rod-shaped Au24 nanoparticle, forming AgAu24 and CuAu24 nanoparticles in a highly controllable manner. Through a combined approach of experiment and theory, we explain the shuttling pathways of single dopants into and out of the nanoparticles. This study shows that the single dopant is shuttled into the hollow Au24 nanoparticle either through the apex or side entry, while shuttling a metal atom out of the Au25 to form the Au24 nanoparticle occurs mainly through the side entry.

Suggested Citation

  • Shuxin Wang & Hadi Abroshan & Chong Liu & Tian-Yi Luo & Manzhou Zhu & Hyung J. Kim & Nathaniel L. Rosi & Rongchao Jin, 2017. "Shuttling single metal atom into and out of a metal nanoparticle," Nature Communications, Nature, vol. 8(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00939-0
    DOI: 10.1038/s41467-017-00939-0
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