skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction

Abstract

Here, precise control of alloying sites has long been a challenging pursuit, yet little has been achieved for the atomic-level manipulation of metallic nanomaterials. Here we describe utilization of a surface motif exchange (SME) reaction to selectively replace the surface motifs of parent [Ag 44(SR) 30] 4– (SR = thiolate) nanoparticles (NPs), leading to bimetallic NPs with well-defined molecular formula and atomically-controlled alloying sites in protecting shell. A systematic mass (and tandem mass) spectrometry analysis suggests that the SME reaction is an atomically precise displacement of SR–Ag(I)–SR-protecting modules of Ag NPs by the incoming SR–Au(I)–SR modules, giving rise to a core-shell [Ag 32@Au 12(SR) 30] 4–. Theoretical calculation suggests that the thermodynamically less favorable core-shell Ag@Au nanostructure is kinetically stabilized by the intermediate Ag 20 shell, preventing inward diffusion of the surface Au atoms. The delicate SME reaction opens a door to precisely control the alloying sites in the protecting shell of bimetallic NPs with broad utility.

Authors:
ORCiD logo [1];  [2];  [3]; ORCiD logo [1];  [3];  [4]; ORCiD logo [1]
  1. National Univ. of Singapore (Singapore). Dept. of Chemical and Biomolecular Engineering
  2. National Univ. of Singapore (Singapore). Dept. of Chemical and Biomolecular Engineering; Chinese Academy of Sciences (CAS), Beijing (China). State Key Lab. of Multiphase Complex Systems
  3. Univ. of California, Riverside, CA (United States). Dept. of Chemistry
  4. Chinese Academy of Sciences (CAS), Beijing (China). State Key Lab. of Multiphase Complex Systems
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
OSTI Identifier:
1489404
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Yao, Qiaofeng, Feng, Yan, Fung, Victor, Yu, Yong, Jiang, De-en, Yang, Jun, and Xie, Jianping. Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction. United States: N. p., 2017. Web. doi:10.1038/s41467-017-01736-5.
Yao, Qiaofeng, Feng, Yan, Fung, Victor, Yu, Yong, Jiang, De-en, Yang, Jun, & Xie, Jianping. Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction. United States. doi:10.1038/s41467-017-01736-5.
Yao, Qiaofeng, Feng, Yan, Fung, Victor, Yu, Yong, Jiang, De-en, Yang, Jun, and Xie, Jianping. Thu . "Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction". United States. doi:10.1038/s41467-017-01736-5. https://www.osti.gov/servlets/purl/1489404.
@article{osti_1489404,
title = {Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction},
author = {Yao, Qiaofeng and Feng, Yan and Fung, Victor and Yu, Yong and Jiang, De-en and Yang, Jun and Xie, Jianping},
abstractNote = {Here, precise control of alloying sites has long been a challenging pursuit, yet little has been achieved for the atomic-level manipulation of metallic nanomaterials. Here we describe utilization of a surface motif exchange (SME) reaction to selectively replace the surface motifs of parent [Ag44(SR)30]4– (SR = thiolate) nanoparticles (NPs), leading to bimetallic NPs with well-defined molecular formula and atomically-controlled alloying sites in protecting shell. A systematic mass (and tandem mass) spectrometry analysis suggests that the SME reaction is an atomically precise displacement of SR–Ag(I)–SR-protecting modules of Ag NPs by the incoming SR–Au(I)–SR modules, giving rise to a core-shell [Ag32@Au12(SR)30]4–. Theoretical calculation suggests that the thermodynamically less favorable core-shell Ag@Au nanostructure is kinetically stabilized by the intermediate Ag20 shell, preventing inward diffusion of the surface Au atoms. The delicate SME reaction opens a door to precisely control the alloying sites in the protecting shell of bimetallic NPs with broad utility.},
doi = {10.1038/s41467-017-01736-5},
journal = {Nature Communications},
number = 1,
volume = 8,
place = {United States},
year = {Thu Nov 16 00:00:00 EST 2017},
month = {Thu Nov 16 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Generalized Gradient Approximation Made Simple
journal, October 1996

  • Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
  • Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
  • DOI: 10.1103/PhysRevLett.77.3865

Projector augmented-wave method
journal, December 1994


From ultrasoft pseudopotentials to the projector augmented-wave method
journal, January 1999


Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
journal, July 1996


Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
journal, October 1996


Correlating the Crystal Structure of A Thiol-Protected Au25 Cluster and Optical Properties
journal, May 2008

  • Zhu, Manzhou; Aikens, Christine M.; Hollander, Frederick J.
  • Journal of the American Chemical Society, Vol. 130, Issue 18, p. 5883-5885
  • DOI: 10.1021/ja801173r