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The effect of electrode composition on bimetallic AgAu nanoparticles produced by spark ablation

Jönsson, Linnéa LU ; Snellman, Markus LU ; Eriksson, Axel LU orcid ; Kåredal, Monica LU orcid ; Wallenberg, Lars Reine LU ; Blomberg, Sara LU ; Kohut, Attila ; Hartman, Linda LU and Messing, Maria LU (2024) In Journal of Aerosol Science 177.
Abstract
A flexible way to generate bimetallic nanoparticles with high control of their composition is to use spark ablation of alloyed electrodes. It has been generally accepted and stated that particles produced using spark ablation of alloyed electrodes obtain the same chemical composition as the electrodes. However, we identify a lack of studies fully supporting the connection between electrode and particle composition, presented in a small literature survey. The aim of the study is, hence, to explore the validity of the statement by analysing the relation between alloyed electrodes and their resulting particle composition using three sets of AgAu electrodes containing Au and 25, 50, and 75 atomic % Ag, respectively. The resulting composition... (More)
A flexible way to generate bimetallic nanoparticles with high control of their composition is to use spark ablation of alloyed electrodes. It has been generally accepted and stated that particles produced using spark ablation of alloyed electrodes obtain the same chemical composition as the electrodes. However, we identify a lack of studies fully supporting the connection between electrode and particle composition, presented in a small literature survey. The aim of the study is, hence, to explore the validity of the statement by analysing the relation between alloyed electrodes and their resulting particle composition using three sets of AgAu electrodes containing Au and 25, 50, and 75 atomic % Ag, respectively. The resulting composition is thoroughly investigated using both single particle (scanning- and transmission electron microscopy) and ensemble particle techniques (inductive coupled plasma-mass spectroscopy, x-ray photoelectron spectroscopy, x-ray fluorescence, and optical measurements of surface plasmon resonance. We also investigate how sample size (e.g., the number of particles analysed) affects the reliability of the resulting sample mean. For single-particle measurements of a sample with a compositional standard deviation of a few atomic percentage points, a sample size of 20 particles is a good benchmark for obtaining reliable results of the sample mean. Furthermore, this article aims to challenge the practice in which the composition of nanoparticles is measured, presented, and interpreted, to improve and facilitate future research related to this topic. From the results of this study, it could be concluded that for the investigated Ag–Au material system, the particles obtained a composition very similar to the alloyed AgAu electrodes. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Journal of Aerosol Science
volume
177
article number
106333
publisher
Elsevier
external identifiers
  • scopus:85181816667
ISSN
0021-8502
DOI
10.1016/j.jaerosci.2023.106333
language
English
LU publication?
yes
id
53d3cd91-56fb-47aa-8f5e-d331727e4623
date added to LUP
2024-01-12 17:45:51
date last changed
2024-01-16 13:12:47
@article{53d3cd91-56fb-47aa-8f5e-d331727e4623,
  abstract     = {{A flexible way to generate bimetallic nanoparticles with high control of their composition is to use spark ablation of alloyed electrodes. It has been generally accepted and stated that particles produced using spark ablation of alloyed electrodes obtain the same chemical composition as the electrodes. However, we identify a lack of studies fully supporting the connection between electrode and particle composition, presented in a small literature survey. The aim of the study is, hence, to explore the validity of the statement by analysing the relation between alloyed electrodes and their resulting particle composition using three sets of AgAu electrodes containing Au and 25, 50, and 75 atomic % Ag, respectively. The resulting composition is thoroughly investigated using both single particle (scanning- and transmission electron microscopy) and ensemble particle techniques (inductive coupled plasma-mass spectroscopy, x-ray photoelectron spectroscopy, x-ray fluorescence, and optical measurements of surface plasmon resonance. We also investigate how sample size (e.g., the number of particles analysed) affects the reliability of the resulting sample mean. For single-particle measurements of a sample with a compositional standard deviation of a few atomic percentage points, a sample size of 20 particles is a good benchmark for obtaining reliable results of the sample mean. Furthermore, this article aims to challenge the practice in which the composition of nanoparticles is measured, presented, and interpreted, to improve and facilitate future research related to this topic. From the results of this study, it could be concluded that for the investigated Ag–Au material system, the particles obtained a composition very similar to the alloyed AgAu electrodes.}},
  author       = {{Jönsson, Linnéa and Snellman, Markus and Eriksson, Axel and Kåredal, Monica and Wallenberg, Lars Reine and Blomberg, Sara and Kohut, Attila and Hartman, Linda and Messing, Maria}},
  issn         = {{0021-8502}},
  language     = {{eng}},
  month        = {{01}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Aerosol Science}},
  title        = {{The effect of electrode composition on bimetallic AgAu nanoparticles produced by spark ablation}},
  url          = {{http://dx.doi.org/10.1016/j.jaerosci.2023.106333}},
  doi          = {{10.1016/j.jaerosci.2023.106333}},
  volume       = {{177}},
  year         = {{2024}},
}