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곽상규

Kwak, Sang Kyu
Kyu’s MolSim Lab @ UNIST
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Uniform Ag Nanocubes Prepared by AgCl Particle–Mediated Heterogeneous Nucleation and Disassembly and Their Mechanism Study by DFT Calculation

Author(s)
Han, Hye JiPark, Ju HyunPark, Jin KyoungKristanto, ImanuelPark, Bum JunKwak, Sang KyuIm, Sang Hyuk
Issued Date
2019-10
DOI
10.1002/smll.201904031
URI
https://scholarworks.unist.ac.kr/handle/201301/27451
Fulltext
https://onlinelibrary.wiley.com/doi/10.1002/smll.201904031
Citation
SMALL, v.15, no.43, pp.1904031
Abstract
Uniform Ag nanocubes are reproducibly synthesized by a AgCl particle‐mediated heterogeneous nucleation and disassembly process in polyol chemistry. By introducing N,N‐dimethylformamide (DMF) in a conventional polyol method with HCl etchant, Ag nanocrystals (NCs) begin to be nucleated on the surface of AgCl‐precipitated particles due to the promoted reduction reaction by DMF. The nucleated Ag NCs on the AgCl particles are grown to Ag nanocubes in shape by consuming Ag sources from the AgCl mother particles. Eventually the grown Ag nanocubes are disassembled from the mother AgCl particles because the AgCl particles are fully digested by the growing Ag nanocubes. Density functional theory calculation confirms that the Ag atoms can be favorably deposited on the (100) facet of AgCl particles and the Ag nuclei on the AgCl particles tend to reveal (100) facet.
Publisher
Wiley - V C H Verlag GmbbH & Co.
ISSN
1613-6810
Keyword (Author)
density functional theory calculationheterogeneous nucleationreproducibilitysilver chloridesilver nanocubes
Keyword
SILVER NANOSTRUCTURESDIELECTRIC-CONSTANTSCHEMICAL-STABILITYPOLYOL SYNTHESISNANOWIRESGOLD

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