Yuta Aida
;
Yasuhiro Nakagawa
;
Tetsuo Kishi
;
Masaki Takeguchi
(National Institute for Materials Science
)
;
Yoshihiro Nemoto
(National Institute for Materials Science)
;
Yasutaka Anraku
;
Toshiyuki Ikoma
Collection
Citation
Description:
(abstract)The growth mechanism by stabilizing certain facets of Au in spines by underpotential deposition of Ag was investigated. The nanoparticles were analyzed primarily by STEM and EDS. Analysis of spines on nanoparticles synthesized with an Au/Ag ratio of 18/4 revealed that approximately 1 nm of Ag was deposited on the topmost surface of Au, and the growth direction of spines was <200>. Underpotential deposition of Ag nanolayers on specific facets of the spines on nanoparticles was observed for the first time by elemental mapping and HAADF STEM tomography.
Rights:
-
Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
© 2024. Licensed under the Creative Commons https://creativecommons.org/licenses/by-nc-nd/4.0/.
Keyword: Star-shaped Au-Ag nanoparticles, Growth mechanism, underpotential deposition, plasmonic nanoparticles
Date published: 2024-03-01
Publisher: Elsevier BV
Journal:
- Materials Today Nano (ISSN: 25888420) vol. 25 100468
Funding:
- Japan Society for the Promotion of Science 23K11845
- Ministry of Education, Culture, Sports, Science and Technology A-21-NM-0080
- National Institute for Materials Science
Manuscript type: Author's version (Accepted manuscript)
MDR DOI: https://doi.org/10.48505/nims.4684
First published URL: https://doi.org/10.1016/j.mtnano.2024.100468
Related item:
Other identifier(s):
Contact agent:
Updated at: 2026-03-01 12:30:08 +0900
Published on MDR: 2026-03-01 09:37:26 +0900
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