Nanostructure effects upon soot oxidation

Randy Lee Vander Wal, Aaron J. Tomasek

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A dependence of the soot particle nanostructure upon synthesis conditions, i.e., temperature, time, and initial fuel identity, was studied. A corresponding variation in the overall reactivity, reflecting an average of the different reactivities associated with these specific atomic sites arises. This variation was presented between a disordered soot derived from benzene and a graphitic soot derived from acetylene. Their oxidation rates differed by nearly 5-fold. Curvature of layer planes, as observed for an ethanol derived soot, substantially increased oxidative reactivity. The reactivity of a soot particle towards oxidation depended upon its nanostructure, i.e. the size, orientation, and organization of the graphene layer planes. Variations in the graphene layer plane dimensions, curvature, and relative orientation would greatly impact the reactivity of the individual graphene segments, and hence the overall particle reactivity. The results illustrated a dependence of the burnout rate upon the soot nanostructure as governed by both the initial fuel and soot growth conditions.

Original languageEnglish (US)
Pages (from-to)762-763
Number of pages2
JournalAm Chem Soc Div Fuel Chem Prepr
Volume48
Issue number2
StatePublished - Sep 2003

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Soot
Nanostructures
Oxidation
Graphene
Acetylene
Benzene
Ethanol

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

Vander Wal, Randy Lee ; Tomasek, Aaron J. / Nanostructure effects upon soot oxidation. In: Am Chem Soc Div Fuel Chem Prepr. 2003 ; Vol. 48, No. 2. pp. 762-763.
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Nanostructure effects upon soot oxidation. / Vander Wal, Randy Lee; Tomasek, Aaron J.

In: Am Chem Soc Div Fuel Chem Prepr, Vol. 48, No. 2, 09.2003, p. 762-763.

Research output: Contribution to journalArticle

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