Restructuring in bimetallic core-shell nanoparticles: Real-time observation

Nakamura, Nobutomo; Matsuura, Koji; Ishii, Akio et al.

Physical Review B, 2022, 105, 125401

アクセス数:408件（2025-07-11 21:15 集計）

固定URL: https://hdl.handle.net/11094/86423

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論文情報

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タイトル
Restructuring in bimetallic core-shell nanoparticles: Real-time observation
著者
NRID
1000050452404 1000050452404
researchmap permalink
nnakamura nnakamura
Scopus Author ID
7403356186 7403356186
ORCID
0000-0002-5338-842X 0000-0002-5338-842X
著者名
Nakamura, Nobutomo
著者名
Matsuura, Koji
NRID
1000080773340 1000080773340
researchmap permalink
a_ishii a_ishii
ORCID
0000-0002-9369-6259 0000-0002-9369-6259
Scopus Author ID
7201558020 7201558020
著者名
Ishii, Akio
NRID
1000090252626 1000090252626
researchmap permalink
read0042771 read0042771
Scopus Author ID
35563683500 35563683500
著者名
Ogi, Hirotsugu
内容
Nakamura Nobutomo, Matsuura Koji, Ishii Akio and Ogi Hirotsugu. Restructuring in bimetallic core-shell nanoparticles: Real-time observation. Physical Review B, 105, 125401, 2022. https://doi.org/10.1103/PhysRevB.105.125401.
抄録
The formation process of core-shell bimetallic nanoparticles synthesized by sputtering onto a substrate is observed in real time using an originally developed acoustic technique. The technique enables us to evaluate the structural change of nanoparticles at room temperature without contacting the nanoparticles or substrate. In the experiments, the sputtering of metal A followed by metal B tended to form B-shell/A-core nanoparticles. However, in Pd-Au alloy system, notable restructuring occurred during synthesis, resulting in the formation of A-shell/B-core nanoparticles. The formation process is analyzed using the molecular dynamics simulation, revealing that this restructuring occurs on a short timescale, and high diffusivity of Au plays an important role.
出版者
American Physical Society (APS)
収録物名
Physical Review B
巻(号)
105
ページ
125401
刊行年月
2022-03-01
言語
英語
ハンドルURL
https://hdl.handle.net/11094/86423
PISSN
24699950
eISSN
24699969
NCID
AA11187113
関連情報 (isIdenticalTo)
DOI (出版社版)
https://doi.org/10.1103/PhysRevB.105.125401
アクセス権
open access
権利情報
Copyright 2022 by the American Physical Society.
出版タイプ
Version of Record
カテゴリ
学術雑誌論文 Journal Article