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Measurements of structures and concentrations of carbon particle species in premixed flames by the use of in-situ wide angle X-ray scattering

Ossler, Frederik LU ; Canton, Sophie E.; Wallenberg, Reine LU ; Engdahl, Anders LU ; Seifert, Soenke; Hessler, Jan P. and Tranter, Robert S. (2016) In Carbon 96. p.782-798
Abstract
In-situ wide-angle X-ray scattering (WAXS) measurements have been conducted on atmosphericpressure fuel-rich premixed freely propagating ethylene/oxygen flames with argon and nitrogen dilution. In this work, a novel analysis methodology able to provide quantitative information on soot/carbon particle species and concentrations was tested under heavy sooting conditions. The particle composition and concentrations were retrieved by fitting theoretical calculations of structural components from major molecular and nanometric species to the experimental WAXS data. The results show that argon dilution yields predominantly graphene-like components that are less stacked and amorphous carbon that is less structured than under nitrogen dilution.... (More)
In-situ wide-angle X-ray scattering (WAXS) measurements have been conducted on atmosphericpressure fuel-rich premixed freely propagating ethylene/oxygen flames with argon and nitrogen dilution. In this work, a novel analysis methodology able to provide quantitative information on soot/carbon particle species and concentrations was tested under heavy sooting conditions. The particle composition and concentrations were retrieved by fitting theoretical calculations of structural components from major molecular and nanometric species to the experimental WAXS data. The results show that argon dilution yields predominantly graphene-like components that are less stacked and amorphous carbon that is less structured than under nitrogen dilution. This finding was later confirmed by electron microscopy analysis on samples extracted from similar flames. In addition, the WAXS showed that most of the carbon present in the flames was bound as particles. These results constitute some of the first in-situ observations on structures and concentrations of carbon species in laboratory burner flames operating without stabilization plates. (C) 2015 Elsevier Ltd. All rights reserved. (Less)
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organization
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type
Contribution to journal
publication status
published
subject
in
Carbon
volume
96
pages
782 - 798
publisher
Elsevier
external identifiers
  • wos:000366078000092
  • scopus:84947997432
ISSN
0008-6223
DOI
10.1016/j.carbon.2015.09.081
language
English
LU publication?
yes
id
8f79720c-101f-407f-b36c-27d8250ed749 (old id 8556914)
date added to LUP
2016-01-26 13:57:36
date last changed
2017-05-28 03:24:02
@article{8f79720c-101f-407f-b36c-27d8250ed749,
  abstract     = {In-situ wide-angle X-ray scattering (WAXS) measurements have been conducted on atmosphericpressure fuel-rich premixed freely propagating ethylene/oxygen flames with argon and nitrogen dilution. In this work, a novel analysis methodology able to provide quantitative information on soot/carbon particle species and concentrations was tested under heavy sooting conditions. The particle composition and concentrations were retrieved by fitting theoretical calculations of structural components from major molecular and nanometric species to the experimental WAXS data. The results show that argon dilution yields predominantly graphene-like components that are less stacked and amorphous carbon that is less structured than under nitrogen dilution. This finding was later confirmed by electron microscopy analysis on samples extracted from similar flames. In addition, the WAXS showed that most of the carbon present in the flames was bound as particles. These results constitute some of the first in-situ observations on structures and concentrations of carbon species in laboratory burner flames operating without stabilization plates. (C) 2015 Elsevier Ltd. All rights reserved.},
  author       = {Ossler, Frederik and Canton, Sophie E. and Wallenberg, Reine and Engdahl, Anders and Seifert, Soenke and Hessler, Jan P. and Tranter, Robert S.},
  issn         = {0008-6223},
  language     = {eng},
  pages        = {782--798},
  publisher    = {Elsevier},
  series       = {Carbon},
  title        = {Measurements of structures and concentrations of carbon particle species in premixed flames by the use of in-situ wide angle X-ray scattering},
  url          = {http://dx.doi.org/10.1016/j.carbon.2015.09.081},
  volume       = {96},
  year         = {2016},
}