---
_id: '51133'
abstract:
- lang: eng
text: In order to standardize spray flame synthesis (SFS) studies, intensive work
has been done in recent years on the design of burner types. Thus, in 2019, the
so-called SpraySyn1 burner was introduced (SS1), which was subsequently characterized
in numerical and experimental studies. Based on this research, a modification
of the nozzle design was proposed, which has now been considered in the successor
model, SpraySyn2 (SS2). As little is known about the effect of the nozzle adaptation
on the particle formation, we operated both burners under identical operating
conditions to produce maghemite. The final powder comparison showed that SS2 yielded
considerable higher specific surface areas (associated with smaller primary particle
sizes), lower polydispersity, and higher phase purity. To obtain further information
on the size distributions of aggregates and agglomerates generated by SS2, aerosol
samples were extracted by hole in a tube (HIAT) sampling and characterized by
scanning mobility particle sizing (SMPS). Samples were extracted along the centerline
at different heights above the burner (HAB) above the visible flame tip (>7 cm),
and quenching experiments were performed to extract the aerosol samples at different
dilution rates. Thereby, it was demonstrated that performing detailed quenching
experiments is crucial for obtaining representative HIAT-SMPS data. In particular,
agglomerates/aggregate sizes were overestimated by up to ~70 % if samples were
not sufficiently diluted. If sufficient dilution was applied, distribution widths
and mean particle mobility diameters were determined with high accuracy (sample
standard derivation <5 %). Our data suggested the evolution of primary particle
sizes was mostly completed <7 cm HAB and it was shown aggregates/agglomerates
present above the visible flame were compact in structure (non- fractal). The
mean diameter of the particle ensemble grew along the centerline from 6.9 nm (7
cm) to 11.4 nm (15 cm), while distribution widths grew from 1.42 to 1.52.
citation:
ama: Tischendorf R, Massopo O, Schmid H-J, et al., eds. Maghemite Nanoparticles
Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a
Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS). Elsevier;
2024. doi:https://doi.org/10.1016/j.jaecs.2023.100235
apa: Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization
by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS).
(2024). In R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F.
Fröde, H. Pitsch, & R. Kneer (Eds.), Applications in Energy and Combustion
Science. Elsevier. https://doi.org/10.1016/j.jaecs.2023.100235
bibtex: '@book{Tischendorf_Massopo_Schmid_Pyrmak_Dupont_Fröde_Pitsch_Kneer_2024,
title={Maghemite nanoparticles synthesis via spray flame synthesis and particle
characterization by hole in a tube sampling and scanning mobility particle sizing
(HIAT-SMPS)}, DOI={https://doi.org/10.1016/j.jaecs.2023.100235},
journal={Applications in Energy and Combustion Science}, publisher={Elsevier},
year={2024} }'
chicago: Tischendorf, Ricardo, Orlando Massopo, Hans-Joachim Schmid, Olek Pyrmak,
Sophie Dupont, Fabian Fröde, Heinz Pitsch, and Reinhold Kneer, eds. Maghemite
Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization
by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS).
Applications in Energy and Combustion Science. Elsevier, 2024. https://doi.org/10.1016/j.jaecs.2023.100235.
ieee: R. Tischendorf et al., Eds., Maghemite nanoparticles synthesis via
spray flame synthesis and particle characterization by hole in a tube sampling
and scanning mobility particle sizing (HIAT-SMPS). Elsevier, 2024.
mla: Tischendorf, Ricardo, et al., editors. “Maghemite Nanoparticles Synthesis via
Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling
and Scanning Mobility Particle Sizing (HIAT-SMPS).” Applications in Energy
and Combustion Science, Elsevier, 2024, doi:https://doi.org/10.1016/j.jaecs.2023.100235.
short: R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde,
H. Pitsch, R. Kneer, eds., Maghemite Nanoparticles Synthesis via Spray Flame Synthesis
and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility
Particle Sizing (HIAT-SMPS), Elsevier, 2024.
date_created: 2024-02-05T12:02:57Z
date_updated: 2024-02-05T12:25:00Z
ddc:
- '660'
department:
- _id: '150'
doi: https://doi.org/10.1016/j.jaecs.2023.100235
editor:
- first_name: Ricardo
full_name: Tischendorf, Ricardo
id: '67002'
last_name: Tischendorf
- first_name: Orlando
full_name: Massopo, Orlando
id: '98419'
last_name: Massopo
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Olek
full_name: Pyrmak, Olek
last_name: Pyrmak
- first_name: Sophie
full_name: Dupont, Sophie
last_name: Dupont
- first_name: Fabian
full_name: Fröde, Fabian
last_name: Fröde
- first_name: Heinz
full_name: Pitsch, Heinz
last_name: Pitsch
- first_name: Reinhold
full_name: Kneer, Reinhold
last_name: Kneer
has_accepted_license: '1'
keyword:
- Flame Spray Pyrolysis
- SpraySyn2
- Spray flame synthesis
- Maghemite nanoparticles
- Gas to particle-conversion
- Hole in a tube sampling
language:
- iso: eng
main_file_link:
- url: https://www.sciencedirect.com/science/article/pii/S2666352X23001243?ref=cra_js_challenge&fr=RR-1
publication: Applications in Energy and Combustion Science
publication_status: published
publisher: Elsevier
status: public
title: Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization
by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)
type: journal_editor
user_id: '98419'
year: '2024'
...
---
_id: '51136'
abstract:
- lang: eng
text: "Iron oxide nanoparticles are very interesting for many applications in different
industrial sectors. A promising\r\nprocess to manufacture these nanoparticles
is flame spray pyrolysis (FSP). A lack of understanding of the\r\nindividual sub-processes
in FSP makes it challenging to tailor nanoparticle properties. This work provides\r\ninsights
into the formation of iron oxide nanoparticles in a turbulent spray flame using
Large Eddy Simulations\r\n(LES), which are based on a comprehensive model, including
customized submodels. Highlights are the\r\nadaption of a turbulent combustion
model and a bivariate hybrid method of moments for modeling nanoparticle\r\ndynamics.
The work focuses on the SpraySyn burner, which is a standardized laboratory burner
and was\r\noperated with a precursor-solvent mixture of ethanol and iron(III)
nitrate nonahydrate. For studying the\r\nrelevance of precursor chemistry, LES
using an evaporation-limited precursor chemistry model is compared\r\nwith a model
that includes detailed iron chemistry. A further novelty is the inclusion of adsorption
in the\r\nsimulation, which defines a third model for comparison. Sufficient validation
is achieved for the undoped LES\r\nusing experimental data from the literature.
A strong impact of the detailed iron chemistry and adsorption\r\nis found on the
precursor consumption and the aggregate and primary particle formation. Comparing
the\r\nparticle diameters with experimental measurements from the literature and
data generated for this work is\r\nfound unsuitable to asses the precursor chemistry
model and revealed an urgent need for future experimental\r\nand numerical research.
This work serves as a step forward in realizing a reliable model."
citation:
ama: Fröde F, Grenga T, Pitsch H, et al., eds. Large Eddy Simulation of Iron
Oxide Formation in a Laboratory Spray Flame. Elsevier; 2023. doi:https://doi.org/10.1016/j.jaecs.2023.100191
apa: Large eddy simulation of iron oxide formation in a laboratory spray flame.
(2023). In F. Fröde, T. Grenga, H. Pitsch, S. Dupont, R. Kneer, R. Tischendorf,
O. Massopo, & H.-J. Schmid (Eds.), Applications in Energy and Combustion
Science. Elsevier. https://doi.org/10.1016/j.jaecs.2023.100191
bibtex: '@book{Fröde_Grenga_Pitsch_Dupont_Kneer_Tischendorf_Massopo_Schmid_2023,
title={Large eddy simulation of iron oxide formation in a laboratory spray flame},
DOI={https://doi.org/10.1016/j.jaecs.2023.100191},
journal={Applications in Energy and Combustion Science}, publisher={Elsevier},
year={2023} }'
chicago: Fröde, Fabian , Temistocle Grenga, Heinz Pitsch, Sophie Dupont, Reinhold
Kneer, Ricardo Tischendorf, Orlando Massopo, and Hans-Joachim Schmid, eds. Large
Eddy Simulation of Iron Oxide Formation in a Laboratory Spray Flame. Applications
in Energy and Combustion Science. Elsevier, 2023. https://doi.org/10.1016/j.jaecs.2023.100191.
ieee: F. Fröde et al., Eds., Large eddy simulation of iron oxide formation
in a laboratory spray flame. Elsevier, 2023.
mla: Fröde, Fabian, et al., editors. “Large Eddy Simulation of Iron Oxide Formation
in a Laboratory Spray Flame.” Applications in Energy and Combustion Science,
Elsevier, 2023, doi:https://doi.org/10.1016/j.jaecs.2023.100191.
short: F. Fröde, T. Grenga, H. Pitsch, S. Dupont, R. Kneer, R. Tischendorf, O. Massopo,
H.-J. Schmid, eds., Large Eddy Simulation of Iron Oxide Formation in a Laboratory
Spray Flame, Elsevier, 2023.
date_created: 2024-02-05T12:17:35Z
date_updated: 2024-02-05T12:38:43Z
department:
- _id: '150'
doi: https://doi.org/10.1016/j.jaecs.2023.100191
editor:
- first_name: 'Fabian '
full_name: 'Fröde, Fabian '
last_name: Fröde
- first_name: 'Temistocle '
full_name: 'Grenga, Temistocle '
last_name: Grenga
- first_name: 'Heinz '
full_name: 'Pitsch, Heinz '
last_name: Pitsch
- first_name: Sophie
full_name: Dupont, Sophie
last_name: Dupont
- first_name: Reinhold
full_name: Kneer, Reinhold
last_name: Kneer
- first_name: Ricardo
full_name: Tischendorf, Ricardo
id: '67002'
last_name: Tischendorf
- first_name: Orlando
full_name: Massopo, Orlando
id: '98419'
last_name: Massopo
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
has_accepted_license: '1'
keyword:
- Flame spray pyrolysis
- Iron oxide formation
- Large eddy simulation
- Method of moments
- SpraySyn
language:
- iso: eng
main_file_link:
- url: https://www.sciencedirect.com/science/article/pii/S2666352X23000808
publication: Applications in Energy and Combustion Science
publication_status: published
publisher: Elsevier
status: public
title: Large eddy simulation of iron oxide formation in a laboratory spray flame
type: journal_editor
user_id: '98419'
year: '2023'
...
---
_id: '51145'
author:
- first_name: Orlando
full_name: Massopo, Orlando
id: '98419'
last_name: Massopo
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
- first_name: Munko
full_name: Gonchikzhapov, Munko
id: '94996'
last_name: Gonchikzhapov
orcid: https://orcid.org/0000-0002-7773-047X
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
citation:
ama: 'Massopo O, Schmid H-J, Gonchikzhapov M, Kasper T. Nanoparticle Concentration
Measurement in Flame Spray Pyrolysis (Poster). In: ; 2023.'
apa: Massopo, O., Schmid, H.-J., Gonchikzhapov, M., & Kasper, T. (2023). Nanoparticle
Concentration Measurement in Flame Spray Pyrolysis (Poster). European Aerosol
Conference, Málaga, Spain .
bibtex: '@inproceedings{Massopo_Schmid_Gonchikzhapov_Kasper_2023, title={Nanoparticle
Concentration Measurement in Flame Spray Pyrolysis (Poster)}, author={Massopo,
Orlando and Schmid, Hans-Joachim and Gonchikzhapov, Munko and Kasper, Tina}, year={2023}
}'
chicago: Massopo, Orlando, Hans-Joachim Schmid, Munko Gonchikzhapov, and Tina Kasper.
“Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster),” 2023.
ieee: O. Massopo, H.-J. Schmid, M. Gonchikzhapov, and T. Kasper, “Nanoparticle Concentration
Measurement in Flame Spray Pyrolysis (Poster),” presented at the European Aerosol
Conference, Málaga, Spain , 2023.
mla: Massopo, Orlando, et al. Nanoparticle Concentration Measurement in Flame
Spray Pyrolysis (Poster). 2023.
short: 'O. Massopo, H.-J. Schmid, M. Gonchikzhapov, T. Kasper, in: 2023.'
conference:
end_date: 2023-09-08
location: 'Málaga, Spain '
name: European Aerosol Conference
start_date: 2023-09-03
date_created: 2024-02-05T12:45:55Z
date_updated: 2024-02-05T12:46:11Z
department:
- _id: '150'
- _id: '728'
keyword:
- Absolute particle concentration
- Flame Spray Pyrolysis
- SMPS
- Mass Spectrometry
language:
- iso: eng
status: public
title: Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster)
type: conference_abstract
user_id: '98419'
year: '2023'
...
---
_id: '46637'
article_number: '100174'
author:
- first_name: Munko
full_name: Gonchikzhapov, Munko
id: '94996'
last_name: Gonchikzhapov
orcid: https://orcid.org/0000-0002-7773-047X
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
citation:
ama: Gonchikzhapov M, Kasper T. Thermal and chemical structure of ethanol and 2-ethylhexanoic
acid/ethanol SpraySyn flames. Applications in Energy and Combustion Science.
2023;15. doi:10.1016/j.jaecs.2023.100174
apa: Gonchikzhapov, M., & Kasper, T. (2023). Thermal and chemical structure
of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames. Applications in
Energy and Combustion Science, 15, Article 100174. https://doi.org/10.1016/j.jaecs.2023.100174
bibtex: '@article{Gonchikzhapov_Kasper_2023, title={Thermal and chemical structure
of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames}, volume={15}, DOI={10.1016/j.jaecs.2023.100174},
number={100174}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier
BV}, author={Gonchikzhapov, Munko and Kasper, Tina}, year={2023} }'
chicago: Gonchikzhapov, Munko, and Tina Kasper. “Thermal and Chemical Structure
of Ethanol and 2-Ethylhexanoic Acid/Ethanol SpraySyn Flames.” Applications
in Energy and Combustion Science 15 (2023). https://doi.org/10.1016/j.jaecs.2023.100174.
ieee: 'M. Gonchikzhapov and T. Kasper, “Thermal and chemical structure of ethanol
and 2-ethylhexanoic acid/ethanol SpraySyn flames,” Applications in Energy and
Combustion Science, vol. 15, Art. no. 100174, 2023, doi: 10.1016/j.jaecs.2023.100174.'
mla: Gonchikzhapov, Munko, and Tina Kasper. “Thermal and Chemical Structure of Ethanol
and 2-Ethylhexanoic Acid/Ethanol SpraySyn Flames.” Applications in Energy and
Combustion Science, vol. 15, 100174, Elsevier BV, 2023, doi:10.1016/j.jaecs.2023.100174.
short: M. Gonchikzhapov, T. Kasper, Applications in Energy and Combustion Science
15 (2023).
date_created: 2023-08-22T13:26:37Z
date_updated: 2023-08-24T08:55:26Z
department:
- _id: '43'
doi: 10.1016/j.jaecs.2023.100174
intvolume: ' 15'
keyword:
- Nanoparticle synthesis
- Flame spray pyrolysis
- SpraySyn burner
- Flame structure
- Species distribution
- Temperature distribution
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S2666352X23000638
oa: '1'
publication: Applications in Energy and Combustion Science
publication_identifier:
issn:
- 2666-352X
publication_status: published
publisher: Elsevier BV
status: public
title: Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol
SpraySyn flames
type: journal_article
user_id: '94996'
volume: 15
year: '2023'
...