Microstructure and oxidation behaviour of Euro IV diesel engine soot: A comparative study with synthetic model soot substances

D. S. Su; R. E. Jentoft; J. O. Müller; D. Rothe; E. Jacob; C. D. Simpson; Ž Tomović; K. Müllen; A. Messerer; U. Pöschl; R. Niessner; R. Schlögl

doi:10.1016/j.cattod.2004.04.017

Microstructure and oxidation behaviour of Euro IV diesel engine soot: A comparative study with synthetic model soot substances

D. S. Su, R. E. Jentoft, J. O. Müller, D. Rothe, E. Jacob, C. D. Simpson, Ž Tomović, K. Müllen, A. Messerer, U. Pöschl, R. Niessner, R. Schlögl

Natural Sciences

Research output: Contribution to journal › Conference article › peer-review

140 Scopus citations

Abstract

In this study, the microstructure and oxidation behaviour of soot from the raw exhaust of a Euro IV test heavy duty (HD) diesel engine are investigated and compared to that of spark-discharge soot and hexabenzocoronene (HBC, C ₄₂H₁₈). We find a microstructure-controlled reactivity towards oxidation of all three samples in 5% O₂ in N₂. The spark-discharge soot with its fine primary particles and fullerenoid structure has an onset temperature of 423K for combustion, while the HBC with its well-ordered crystallites has a high onset temperature of 773K. Due to an improved combustion process in the Euro IV HD diesel engine, the emitted soot consists of more fullerenoid- or onion-like particles agglomerated in a chain-like secondary structure. The onset temperature of the Euro IV HD engine soot combustion is 573K. Oxidation of the three samples produces only CO ₂ and H₂O. The different H₂O production profiles can be assigned to the functionalised surface of the samples and depend on the soot structure and preparation route.

Original language	English
Pages (from-to)	127-132
Number of pages	6
Journal	Catalysis Today
Volume	90
Issue number	1-2
DOIs	https://doi.org/10.1016/j.cattod.2004.04.017
State	Published - 15 Jun 2004
Event	Air Pollution Abatement Symposium - Innsbruck, Austria Duration: 31 Aug 2003 → 31 Aug 2003

Keywords

Euro IV HD diesel engine soot
HBC
Soot microstructure
Soot oxidation

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10.1016/j.cattod.2004.04.017

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Su, D. S., Jentoft, R. E., Müller, J. O., Rothe, D., Jacob, E., Simpson, C. D., Tomović, Ž., Müllen, K., Messerer, A., Pöschl, U., Niessner, R., & Schlögl, R. (2004). Microstructure and oxidation behaviour of Euro IV diesel engine soot: A comparative study with synthetic model soot substances. Catalysis Today, 90(1-2), 127-132. https://doi.org/10.1016/j.cattod.2004.04.017

@article{85325037e975496aba077ecac149a26f,

title = "Microstructure and oxidation behaviour of Euro IV diesel engine soot: A comparative study with synthetic model soot substances",

abstract = "In this study, the microstructure and oxidation behaviour of soot from the raw exhaust of a Euro IV test heavy duty (HD) diesel engine are investigated and compared to that of spark-discharge soot and hexabenzocoronene (HBC, C 42H18). We find a microstructure-controlled reactivity towards oxidation of all three samples in 5% O2 in N2. The spark-discharge soot with its fine primary particles and fullerenoid structure has an onset temperature of 423K for combustion, while the HBC with its well-ordered crystallites has a high onset temperature of 773K. Due to an improved combustion process in the Euro IV HD diesel engine, the emitted soot consists of more fullerenoid- or onion-like particles agglomerated in a chain-like secondary structure. The onset temperature of the Euro IV HD engine soot combustion is 573K. Oxidation of the three samples produces only CO 2 and H2O. The different H2O production profiles can be assigned to the functionalised surface of the samples and depend on the soot structure and preparation route.",

keywords = "Euro IV HD diesel engine soot, HBC, Soot microstructure, Soot oxidation",

author = "Su, {D. S.} and Jentoft, {R. E.} and M{\"u}ller, {J. O.} and D. Rothe and E. Jacob and Simpson, {C. D.} and {\v Z} Tomovi{\'c} and K. M{\"u}llen and A. Messerer and U. P{\"o}schl and R. Niessner and R. Schl{\"o}gl",

note = "Funding Information: This work is part of the project “Katalytisches System zur filterlosen kontinuierlichen Ru{\ss}partikelverminderung f{\"u}r Fahrzeugdieselmotoren” supported by the Bayerische Forschungsstiftung. ; Air Pollution Abatement Symposium ; Conference date: 31-08-2003 Through 31-08-2003",

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doi = "10.1016/j.cattod.2004.04.017",

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Su, DS, Jentoft, RE, Müller, JO, Rothe, D, Jacob, E, Simpson, CD, Tomović, Ž, Müllen, K, Messerer, A, Pöschl, U, Niessner, R & Schlögl, R 2004, 'Microstructure and oxidation behaviour of Euro IV diesel engine soot: A comparative study with synthetic model soot substances', Catalysis Today, vol. 90, no. 1-2, pp. 127-132. https://doi.org/10.1016/j.cattod.2004.04.017

TY - JOUR

T1 - Microstructure and oxidation behaviour of Euro IV diesel engine soot

T2 - Air Pollution Abatement Symposium

AU - Su, D. S.

AU - Jentoft, R. E.

AU - Müller, J. O.

AU - Rothe, D.

AU - Jacob, E.

AU - Simpson, C. D.

AU - Tomović, Ž

AU - Müllen, K.

AU - Messerer, A.

AU - Pöschl, U.

AU - Niessner, R.

AU - Schlögl, R.

N1 - Funding Information: This work is part of the project “Katalytisches System zur filterlosen kontinuierlichen Rußpartikelverminderung für Fahrzeugdieselmotoren” supported by the Bayerische Forschungsstiftung.

PY - 2004/6/15

Y1 - 2004/6/15

N2 - In this study, the microstructure and oxidation behaviour of soot from the raw exhaust of a Euro IV test heavy duty (HD) diesel engine are investigated and compared to that of spark-discharge soot and hexabenzocoronene (HBC, C 42H18). We find a microstructure-controlled reactivity towards oxidation of all three samples in 5% O2 in N2. The spark-discharge soot with its fine primary particles and fullerenoid structure has an onset temperature of 423K for combustion, while the HBC with its well-ordered crystallites has a high onset temperature of 773K. Due to an improved combustion process in the Euro IV HD diesel engine, the emitted soot consists of more fullerenoid- or onion-like particles agglomerated in a chain-like secondary structure. The onset temperature of the Euro IV HD engine soot combustion is 573K. Oxidation of the three samples produces only CO 2 and H2O. The different H2O production profiles can be assigned to the functionalised surface of the samples and depend on the soot structure and preparation route.

AB - In this study, the microstructure and oxidation behaviour of soot from the raw exhaust of a Euro IV test heavy duty (HD) diesel engine are investigated and compared to that of spark-discharge soot and hexabenzocoronene (HBC, C 42H18). We find a microstructure-controlled reactivity towards oxidation of all three samples in 5% O2 in N2. The spark-discharge soot with its fine primary particles and fullerenoid structure has an onset temperature of 423K for combustion, while the HBC with its well-ordered crystallites has a high onset temperature of 773K. Due to an improved combustion process in the Euro IV HD diesel engine, the emitted soot consists of more fullerenoid- or onion-like particles agglomerated in a chain-like secondary structure. The onset temperature of the Euro IV HD engine soot combustion is 573K. Oxidation of the three samples produces only CO 2 and H2O. The different H2O production profiles can be assigned to the functionalised surface of the samples and depend on the soot structure and preparation route.

KW - Euro IV HD diesel engine soot

KW - HBC

KW - Soot microstructure

KW - Soot oxidation

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U2 - 10.1016/j.cattod.2004.04.017

DO - 10.1016/j.cattod.2004.04.017

M3 - Conference article

AN - SCOPUS:3142680191

SN - 0920-5861

VL - 90

SP - 127

EP - 132

JO - Catalysis Today

JF - Catalysis Today

IS - 1-2

Y2 - 31 August 2003 through 31 August 2003

ER -

Microstructure and oxidation behaviour of Euro IV diesel engine soot: A comparative study with synthetic model soot substances

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Keywords

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