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

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

Physical Review B, 2022, 105, 125401

Number of Access:468（2025-09-05 16:48 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/86423

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
PhysRevB_105_125401 pdf None 764 KB 216 2022.03.04  

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Restructuring in bimetallic core-shell nanoparticles: Real-time observation
Creator
NRID
1000050452404 1000050452404
researchmap permalink
nnakamura nnakamura
Scopus Author ID
7403356186 7403356186
ORCID
0000-0002-5338-842X 0000-0002-5338-842X
CreatorName
Nakamura, Nobutomo
CreatorName
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
CreatorName
Ishii, Akio
NRID
1000090252626 1000090252626
researchmap permalink
read0042771 read0042771
Scopus Author ID
35563683500 35563683500
CreatorName
Ogi, Hirotsugu
Description
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.
Abstract
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.
Publisher
American Physical Society (APS)
Source Title
Physical Review B
Volume (Issue)
105
Page
125401
Date of Issued
2022-03-01
Language
English
Handle URL
https://hdl.handle.net/11094/86423
PISSN
24699950
eISSN
24699969
NCID
AA11187113
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1103/PhysRevB.105.125401
Access Rights
open access
CopyRight
Copyright 2022 by the American Physical Society.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article