Relating aerosol mass spectra to composition and nanostructure of soot particles
(2019) In Carbon 142. p.535-546- Abstract
- The composition and carbon nanostructure of soot are important parameters influencing health and climate effects, and the efficacy of soot mitigation technologies. We used laser-vaporization, electron-ionization aerosol mass spectrometry (or SP-AMS) to systematically investigate relationships between aerosol mass spectra, carbon nanostructure (HRTEM), and composition (thermal-optical carbon analysis) for soot with varying physicochemical properties. SP-AMS refractory black carbon concentrations (based on C≤5+ clusters) were correlated to elemental carbon (r = 0.98, p < 10−8) and equivalent black carbon (aethalometer) concentrations. The SP-AMS large carbon (C≥6+, midcarbons and fullerene carbons) fraction was inversely correlated to... (More)
- The composition and carbon nanostructure of soot are important parameters influencing health and climate effects, and the efficacy of soot mitigation technologies. We used laser-vaporization, electron-ionization aerosol mass spectrometry (or SP-AMS) to systematically investigate relationships between aerosol mass spectra, carbon nanostructure (HRTEM), and composition (thermal-optical carbon analysis) for soot with varying physicochemical properties. SP-AMS refractory black carbon concentrations (based on C≤5+ clusters) were correlated to elemental carbon (r = 0.98, p < 10−8) and equivalent black carbon (aethalometer) concentrations. The SP-AMS large carbon (C≥6+, midcarbons and fullerene carbons) fraction was inversely correlated to fringe length (r = −0.97, p = 0.028) and linearly correlated to the fraction of refractory organic carbon that partially pyrolize during heating (r = 0.89, p < 10−4). This refractory organic carbon material was incompletely detected with conventional aerosol mass spectrometry (flash vaporization at 600 °C). This suggests that (SP-AMS) refractory carbon cluster analysis provides insight to chemical bonding and nanostructures in refractory carbon materials, lowcarbons (C≤5+) indicate mature soot and large carbons indicate refractory organic carbon and amorphous nanostructures related to C5-components. These results have implications for assessments of soot particle mixing state and brown carbon absorption in the atmosphere and enable novel, on-line analysis of engineered carbon nanomaterials and soot characteristics relevant for climate and health. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/989bfe5a-c753-4629-9c40-11a7f6f9ef9c
- author
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Soot, Carbon, Black carbon, Combustion aerosol, Combustion Aerosols, Fullerenes, Soot evolution
- in
- Carbon
- volume
- 142
- pages
- 535 - 546
- publisher
- Elsevier
- external identifiers
-
- scopus:85057158172
- ISSN
- 0008-6223
- DOI
- 10.1016/j.carbon.2018.10.072
- project
- Black carbon precursors in combustion emissions: Implications for health effects, short-lived climate forcing and emission mitigation
- language
- English
- LU publication?
- yes
- id
- 989bfe5a-c753-4629-9c40-11a7f6f9ef9c
- date added to LUP
- 2018-11-15 21:53:28
- date last changed
- 2023-11-18 05:17:48
@article{989bfe5a-c753-4629-9c40-11a7f6f9ef9c, abstract = {{The composition and carbon nanostructure of soot are important parameters influencing health and climate effects, and the efficacy of soot mitigation technologies. We used laser-vaporization, electron-ionization aerosol mass spectrometry (or SP-AMS) to systematically investigate relationships between aerosol mass spectra, carbon nanostructure (HRTEM), and composition (thermal-optical carbon analysis) for soot with varying physicochemical properties. SP-AMS refractory black carbon concentrations (based on C≤5+ clusters) were correlated to elemental carbon (r = 0.98, p < 10−8) and equivalent black carbon (aethalometer) concentrations. The SP-AMS large carbon (C≥6+, midcarbons and fullerene carbons) fraction was inversely correlated to fringe length (r = −0.97, p = 0.028) and linearly correlated to the fraction of refractory organic carbon that partially pyrolize during heating (r = 0.89, p < 10−4). This refractory organic carbon material was incompletely detected with conventional aerosol mass spectrometry (flash vaporization at 600 °C). This suggests that (SP-AMS) refractory carbon cluster analysis provides insight to chemical bonding and nanostructures in refractory carbon materials, lowcarbons (C≤5+) indicate mature soot and large carbons indicate refractory organic carbon and amorphous nanostructures related to C5-components. These results have implications for assessments of soot particle mixing state and brown carbon absorption in the atmosphere and enable novel, on-line analysis of engineered carbon nanomaterials and soot characteristics relevant for climate and health.}}, author = {{Malmborg, Vilhelm and Eriksson, Axel and Török, Sandra and Zhang, Yilong and Kling, Kirsten I and Martinsson, Johan and Fortner, Edward and Gren, Louise and Kook, Sanghoon and Onasch, Timothy and Bengtsson, Per-Erik and Pagels, Joakim}}, issn = {{0008-6223}}, keywords = {{Soot; Carbon; Black carbon; Combustion aerosol; Combustion Aerosols; Fullerenes; Soot evolution}}, language = {{eng}}, pages = {{535--546}}, publisher = {{Elsevier}}, series = {{Carbon}}, title = {{Relating aerosol mass spectra to composition and nanostructure of soot particles}}, url = {{https://lup.lub.lu.se/search/files/54154413/Malmborg_et_al._2019_Carbon.pdf}}, doi = {{10.1016/j.carbon.2018.10.072}}, volume = {{142}}, year = {{2019}}, }