Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes
Spray flame synthesis (SFS) is a promising technique for the production of metal-oxide nanoparticles. However, the processes involved during the synthesis are not yet fully understood. To provide a common workbench for a wide range of investigations, the standardized SpraySyn burners have been intro...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
|
| Series: | Applications in Energy and Combustion Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666352X25000068 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850111395219111936 |
|---|---|
| author | Peter Lang Nils E. Schneider Franz J.T. Huber Stefan Will |
| author_facet | Peter Lang Nils E. Schneider Franz J.T. Huber Stefan Will |
| author_sort | Peter Lang |
| collection | DOAJ |
| description | Spray flame synthesis (SFS) is a promising technique for the production of metal-oxide nanoparticles. However, the processes involved during the synthesis are not yet fully understood. To provide a common workbench for a wide range of investigations, the standardized SpraySyn burners have been introduced. This work presents an in-depth investigation of the improved SpraySyn 2.0 burner, characterizing important droplet, combustion and particle features. The sizes of the droplets produced from an ignited ethanol spray are measured in a range between 20 mm and 45 mm height above the burner (HAB) employing wide-angle light scattering (WALS), revealing much smaller droplets compared to previous SpraySyn 1.0, which eventually leads to faster evaporation. Flame fluctuations are investigated using high-speed imaging of the flame chemiluminescence, indicating a change in fluctuation behaviour compared to the previous burner. WALS is also employed for single-shot in situ size measurements of produced iron-oxide and titanium-dioxide nanoparticles at various HABs ranging from 30 mm to 210 mm, allowing to observe the particle growth. To further assess the properties of the produced particles, extensive TEM measurements for both particle systems are conducted and evaluated. Finally, the influence of flame pulsations on particle size is investigated by coupling chemiluminescence imaging with WALS, yielding no correlation between both. |
| format | Article |
| id | doaj-art-c9211a10e4dc4d0db880eca48bd85ea6 |
| institution | OA Journals |
| issn | 2666-352X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applications in Energy and Combustion Science |
| spelling | doaj-art-c9211a10e4dc4d0db880eca48bd85ea62025-08-20T02:37:38ZengElsevierApplications in Energy and Combustion Science2666-352X2025-06-012210032410.1016/j.jaecs.2025.100324Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizesPeter Lang0Nils E. Schneider1Franz J.T. Huber2Stefan Will3Lehrstuhl für Technische Thermodynamik (LTT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, Germany; Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, GermanyLehrstuhl für Technische Thermodynamik (LTT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, GermanyLehrstuhl für Technische Thermodynamik (LTT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, Germany; Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, GermanyLehrstuhl für Technische Thermodynamik (LTT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, Germany; Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU), Erlangen, Germany; Corresponding author.Spray flame synthesis (SFS) is a promising technique for the production of metal-oxide nanoparticles. However, the processes involved during the synthesis are not yet fully understood. To provide a common workbench for a wide range of investigations, the standardized SpraySyn burners have been introduced. This work presents an in-depth investigation of the improved SpraySyn 2.0 burner, characterizing important droplet, combustion and particle features. The sizes of the droplets produced from an ignited ethanol spray are measured in a range between 20 mm and 45 mm height above the burner (HAB) employing wide-angle light scattering (WALS), revealing much smaller droplets compared to previous SpraySyn 1.0, which eventually leads to faster evaporation. Flame fluctuations are investigated using high-speed imaging of the flame chemiluminescence, indicating a change in fluctuation behaviour compared to the previous burner. WALS is also employed for single-shot in situ size measurements of produced iron-oxide and titanium-dioxide nanoparticles at various HABs ranging from 30 mm to 210 mm, allowing to observe the particle growth. To further assess the properties of the produced particles, extensive TEM measurements for both particle systems are conducted and evaluated. Finally, the influence of flame pulsations on particle size is investigated by coupling chemiluminescence imaging with WALS, yielding no correlation between both.http://www.sciencedirect.com/science/article/pii/S2666352X25000068Flame spray pyrolysis (FSP)SpraySyn burnerFlame fluctuationsWide-angle light scattering (WALS)Droplet sizeParticle size |
| spellingShingle | Peter Lang Nils E. Schneider Franz J.T. Huber Stefan Will Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes Applications in Energy and Combustion Science Flame spray pyrolysis (FSP) SpraySyn burner Flame fluctuations Wide-angle light scattering (WALS) Droplet size Particle size |
| title | Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes |
| title_full | Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes |
| title_fullStr | Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes |
| title_full_unstemmed | Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes |
| title_short | Characterization of the SpraySyn 2.0 burner: Droplet diameters, flame stability and particle sizes |
| title_sort | characterization of the spraysyn 2 0 burner droplet diameters flame stability and particle sizes |
| topic | Flame spray pyrolysis (FSP) SpraySyn burner Flame fluctuations Wide-angle light scattering (WALS) Droplet size Particle size |
| url | http://www.sciencedirect.com/science/article/pii/S2666352X25000068 |
| work_keys_str_mv | AT peterlang characterizationofthespraysyn20burnerdropletdiametersflamestabilityandparticlesizes AT nilseschneider characterizationofthespraysyn20burnerdropletdiametersflamestabilityandparticlesizes AT franzjthuber characterizationofthespraysyn20burnerdropletdiametersflamestabilityandparticlesizes AT stefanwill characterizationofthespraysyn20burnerdropletdiametersflamestabilityandparticlesizes |