Skip navigation

Main Menu

Global Menu

Search

Publications

Publications

Publication View

Seminar
NUMBER  
AUTHOR Kim, Hyung J.
TITLE Shuttling single metal atom into and out of a metal nanoparticle
ARCHIVE  
FILE  
JOURNAL NATURE COMMUNICATIONS, 2017
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 Au-24 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 Au-24 nanoparticle either through the apex or side entry, while shuttling a metal atom out of the Au-25 to form the Au-24 nanoparticle occurs mainly through the side entry.
  • before page
  • list
  • next page
Seminar List

keyword

fiel&date

~