Journal
NATURE COMMUNICATIONS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-017-00939-0
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Funding
- China Scholarship Council
- NSFC [21372006, U1532141]
- Ministry of Education
- Education Department of Anhui Province
- 211 Project of Anhui University
- National Science Foundation through NSF [CHE-1223988]
- U.S. National Science Foundation [DMREF-0903225]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1434486] Funding Source: National Science Foundation
- National Research Foundation of Korea [00000001] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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