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Bismuth-oxide nanoparticles: study in a beam and as deposited

Mikkelä, Mikko-Heikki LU ; Marnauza, Mikelis LU orcid ; Hetherington, Crispin LU orcid ; Wallenberg, Lars Reine LU ; Mårsell, Erik LU ; Liu, Yen-Po LU ; Mikkelsen, Anders LU ; Björneholm, Olle LU ; Öhrwall, Gunnar LU orcid and Tchaplyguine, Maxim LU (2024) In Physical chemistry chemical physics : PCCP 26(13). p.10369-10381
Abstract
Bi2O3 is a promising material for solid-oxide fuel cells (SOFC) due to the high ionic conductivity of some phases. The largest value is reached for its δ-phase, but it is normally stable at temperatures too high for SOFC operation, while nanostructured oxide is believed to have more suitable stabilization temperature. However, to manufacture such a material with a controlled chemical composition is a challenging task. In this work, we investigated the fabrication of nanostructured Bi2O3 films formed by deposition of free Bi-oxide nanoparticles created in situ. The particle-production method was based on reactive sputtering and vapour aggregation. Depending on the fabrication conditions, the nanoparticles contained either a combination of... (More)
Bi2O3 is a promising material for solid-oxide fuel cells (SOFC) due to the high ionic conductivity of some phases. The largest value is reached for its δ-phase, but it is normally stable at temperatures too high for SOFC operation, while nanostructured oxide is believed to have more suitable stabilization temperature. However, to manufacture such a material with a controlled chemical composition is a challenging task. In this work, we investigated the fabrication of nanostructured Bi2O3 films formed by deposition of free Bi-oxide nanoparticles created in situ. The particle-production method was based on reactive sputtering and vapour aggregation. Depending on the fabrication conditions, the nanoparticles contained either a combination of Bi–metal and Bi-oxide, or only Bi-oxide. Prior to deposition, the free particles were probed in the beam – by synchrotron-based photoelectron spectroscopy (PES), which allowed assessing their composition “on the-fly”. The nanoparticle films obtained after deposition were studied by PES, scanning electron microscopy, transmission electron microscopy, and electron diffraction. The films' chemical composition, grain dimensions, and crystal structure were probed. Our analysis suggests that our method produced Bi-oxide films in more than one polymorph of Bi2O3. (Less)
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author
; ; ; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical chemistry chemical physics : PCCP
volume
26
issue
13
pages
13 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85188124193
ISSN
1463-9084
DOI
10.1039/D4CP00376D
language
English
LU publication?
yes
id
930336d3-f196-493e-aad7-689736a25c5f
date added to LUP
2024-03-27 16:08:06
date last changed
2024-04-02 13:34:26
@article{930336d3-f196-493e-aad7-689736a25c5f,
  abstract     = {{Bi2O3 is a promising material for solid-oxide fuel cells (SOFC) due to the high ionic conductivity of some phases. The largest value is reached for its δ-phase, but it is normally stable at temperatures too high for SOFC operation, while nanostructured oxide is believed to have more suitable stabilization temperature. However, to manufacture such a material with a controlled chemical composition is a challenging task. In this work, we investigated the fabrication of nanostructured Bi2O3 films formed by deposition of free Bi-oxide nanoparticles created in situ. The particle-production method was based on reactive sputtering and vapour aggregation. Depending on the fabrication conditions, the nanoparticles contained either a combination of Bi–metal and Bi-oxide, or only Bi-oxide. Prior to deposition, the free particles were probed in the beam – by synchrotron-based photoelectron spectroscopy (PES), which allowed assessing their composition “on the-fly”. The nanoparticle films obtained after deposition were studied by PES, scanning electron microscopy, transmission electron microscopy, and electron diffraction. The films' chemical composition, grain dimensions, and crystal structure were probed. Our analysis suggests that our method produced Bi-oxide films in more than one polymorph of Bi2O3.}},
  author       = {{Mikkelä, Mikko-Heikki and Marnauza, Mikelis and Hetherington, Crispin and Wallenberg, Lars Reine and Mårsell, Erik and Liu, Yen-Po and Mikkelsen, Anders and Björneholm, Olle and Öhrwall, Gunnar and Tchaplyguine, Maxim}},
  issn         = {{1463-9084}},
  language     = {{eng}},
  number       = {{13}},
  pages        = {{10369--10381}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Physical chemistry chemical physics : PCCP}},
  title        = {{Bismuth-oxide nanoparticles: study in a beam and as deposited}},
  url          = {{http://dx.doi.org/10.1039/D4CP00376D}},
  doi          = {{10.1039/D4CP00376D}},
  volume       = {{26}},
  year         = {{2024}},
}