Comparative NEXAFS study on soot obtained from an ethylene/air flame, a Diesel engine, and graphite (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Comparative NEXAFS study on soot obtained from an ethylene/air flame, a Diesel engine, and graphite (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1021/ef058019g (literal)

Alternative label

• di Stasio S. 1; Braun A. 2 (2006)
  Comparative NEXAFS study on soot obtained from an ethylene/air flame, a Diesel engine, and graphite
  in Energy & fuels (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• di Stasio S. 1; Braun A. 2 (literal)

Pagina inizio

• 187 (literal)

Pagina fine

• 194 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 20 (literal)

Rivista

• Energy & fuels (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1) Istituto Motori, CNR, Napoli, Italy; 2) Department of Chemical and Materials Engineering, Univ. of Kentucky, USA. (literal)

Titolo

• Comparative NEXAFS study on soot obtained from an ethylene/air flame, a Diesel engine, and graphite (literal)

Abstract

• Microstructure and molecular structure properties of different carbonaceous byproducts from combustion are fundamental to evaluate the radiative properties of such materials when combustion aerosols interact with solar radiation in atmosphere. Carbon near edge X-ray absorption fine structure (NEXAFS) spectroscopy is presented as an analytical technique for the carbon-specific characterization of various soot species. Ethylene soot, diesel soot, and carbon black NEXAFS spectra are discussed in relation to graphite as the most genuine model compounds of soot. Characteristic resonances in the spectra allow for the direct molecular speciation of the graphite-like solid core in soot, surface functional groups, and aromatic and aliphatic components, depending on the origin of the soot. Moreover, in the experimental case of ethylene soot samples probed at increasing distances from the burner nozzle, namely, at increasing residence times, NEXAFS experiments lead to the evidence that the soot collected near the nozzle appears to be more graphitized than soot sampled at larger heights-above-burner, in qualitative agreement with laser light scattering depolarization measurements reported here and previous findings obtained by electron microscopy characterization. The possible implications of the presented results on soot formation mechanism, combustion source attribution of carbon particulates, and UV-vis sunlight absorption by black carbon aerosols are briefly discussed. (literal)

Prodotto di

• Nanostrutture e fluidi complessi impieganti nanomateriali per applicazioni di gas sensor e di heat transfer technology tipiche dei sistemi di propulsione del settore trasporti (ET.P02.016.003) (Modulo)
• Nanostrutture e fluidi complessi impieganti nanomateriali, X-ray e light scattering (ET.P02.002.008) (Modulo)
• Istituto motori (IM) (Istituto)

Autore CNR

• STEFANO DI STASIO (Persona)

Insieme di parole chiave

• Keywords of "Comparative NEXAFS study on soot obtained from an ethylene/air flame, a Diesel engine, and graphite" (Insieme di parole chiave)

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Prodotto

• Istituto motori (IM) (Istituto)
• Nanostrutture e fluidi complessi impieganti nanomateriali, X-ray e light scattering (ET.P02.002.008) (Modulo)
• Nanostrutture e fluidi complessi impieganti nanomateriali per applicazioni di gas sensor e di heat transfer technology tipiche dei sistemi di propulsione del settore trasporti (ET.P02.016.003) (Modulo)

Autore CNR di

• STEFANO DI STASIO (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Energy & fuels (Rivista)

Insieme di parole chiave di

• Keywords of "Comparative NEXAFS study on soot obtained from an ethylene/air flame, a Diesel engine, and graphite" (Insieme di parole chiave)