CAS OpenIR  > 多相复杂系统国家重点实验室
Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction
Yao, Qiaofeng1; Feng, Yan1,2; Fung, Victor3; Yu, Yong1; Jiang, De-en3; Yang, Jun2; Xie, Jianping1
2017-11-16
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume8Issue:NOVPages:1555
Abstract

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.

SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1038/s41467-017-01736-5
Indexed BySCI
Language英语
WOS KeywordTOTAL-ENERGY CALCULATIONS ; PROTECTED GOLD CLUSTERS ; AUGMENTED-WAVE METHOD ; METAL NANOCLUSTERS ; LIGAND-EXCHANGE ; CRYSTAL-STRUCTURE ; BIOLOGICAL APPLICATIONS ; ELECTRONIC-STRUCTURE ; AU-25 NANOCLUSTERS ; COLLOIDAL METAL
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationMinistry of Education, Singapore(R-279-000-481-112) ; National Science Foundation of China(21573240) ; Office of Science of the U.S. Department of Energy(DE-AC02-05CH11231)
WOS IDWOS:000415323700002
Citation statistics
Cited Times:40[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23402
Collection多相复杂系统国家重点实验室
Affiliation1.Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
Recommended Citation
GB/T 7714
Yao, Qiaofeng,Feng, Yan,Fung, Victor,et al. Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction[J]. NATURE COMMUNICATIONS,2017,8(NOV):1555.
APA Yao, Qiaofeng.,Feng, Yan.,Fung, Victor.,Yu, Yong.,Jiang, De-en.,...&Xie, Jianping.(2017).Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction.NATURE COMMUNICATIONS,8(NOV),1555.
MLA Yao, Qiaofeng,et al."Precise control of alloying sites of bimetallic nanoclusters via surface motif exchange reaction".NATURE COMMUNICATIONS 8.NOV(2017):1555.
Files in This Item:
File Name/Size DocType Version Access License
Precise control of a(2185KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yao, Qiaofeng]'s Articles
[Feng, Yan]'s Articles
[Fung, Victor]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yao, Qiaofeng]'s Articles
[Feng, Yan]'s Articles
[Fung, Victor]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yao, Qiaofeng]'s Articles
[Feng, Yan]'s Articles
[Fung, Victor]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.