Advances in soot particles from gasoline direct injection engines: A focus on physical and chemical characterisation.

Wang, X; Chen, W-H; Huang, Y; Wang, L; Zhao, Y; Gao, J

Advances in soot particles from gasoline direct injection engines: A focus on physical and chemical characterisation.

Wang, X Chen, W-H Huang, Y

Wang, L Zhao, Y Gao, J

Permalink

Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Chemosphere, 2022, 311, (Pt 2), pp. 137181
Issue Date:: 2022-11-08

Embargoed

	Filename	Description	Size
	Advances in soot particles from.pdf	Accepted version	3.44 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Embargoed
Open Access

This item is currently unavailable due to the publisher's embargo.

The embargo period expires on 1 Jan 2025

Full metadata record

Field	Value	Language
dc.contributor.author	Wang, X
dc.contributor.author	Chen, W-H
dc.contributor.author	Huang, Y https://orcid.org/0000-0001-9800-8788
dc.contributor.author	Wang, L
dc.contributor.author	Zhao, Y
dc.contributor.author	Gao, J
dc.date.accessioned	2023-02-07T01:10:01Z
dc.date.available	2022-11-05
dc.date.available	2023-02-07T01:10:01Z
dc.date.issued	2022-11-08
dc.identifier.citation	Chemosphere, 2022, 311, (Pt 2), pp. 137181
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/165956
dc.description.abstract	With an increasing market share of gasoline direct injection (GDI) vehicles, high particulate emissions of GDI engines are of increasing concern due to their adverse impacts on both human health and the ecological environment. A thorough understanding of GDI nanoparticulate properties is required to develop advanced particulate filters and assess the exhaust toxicity and environmental impacts. To this end, this paper aims to provide a comprehensive review of the physical and chemical characteristics of GDI nanoparticles from a distinctive perspective, including soot oxidation reactivity, morphology, nanostructure, surface chemistry, chemical components, and their correlations. This review begins with a brief description of nanoparticle characterisation methods. Then, the nanoparticle characteristics of GDI engines are reviewed with the following aspects: in-cylinder soot, exhaust particulate features, and a comparison between GDI and diesel nanoparticles. Previous studies showed that exhaust nanoparticle presents a more stable nanostructure and is less prone to oxidation if compared with in-cylinder soot. Additionally, GDI particles are less-ordered, more inorganic and metallic containing, and more reactive than diesel particles. Afterwards, the impacts of engine operating parameters and aftertreatments on GDI soot features are discussed in detail. Finally, the conclusions and future research recommendations are presented.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/DE220100552
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2022.137181
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.title	Advances in soot particles from gasoline direct injection engines: A focus on physical and chemical characterisation.
dc.type	Journal Article
utslib.citation.volume	311
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-01-01T00:00:00+1000Z
dc.date.updated	2023-02-07T01:09:59Z
pubs.issue	Pt 2
pubs.publication-status	Published online
pubs.volume	311
utslib.citation.issue	Pt 2

Abstract:

With an increasing market share of gasoline direct injection (GDI) vehicles, high particulate emissions of GDI engines are of increasing concern due to their adverse impacts on both human health and the ecological environment. A thorough understanding of GDI nanoparticulate properties is required to develop advanced particulate filters and assess the exhaust toxicity and environmental impacts. To this end, this paper aims to provide a comprehensive review of the physical and chemical characteristics of GDI nanoparticles from a distinctive perspective, including soot oxidation reactivity, morphology, nanostructure, surface chemistry, chemical components, and their correlations. This review begins with a brief description of nanoparticle characterisation methods. Then, the nanoparticle characteristics of GDI engines are reviewed with the following aspects: in-cylinder soot, exhaust particulate features, and a comparison between GDI and diesel nanoparticles. Previous studies showed that exhaust nanoparticle presents a more stable nanostructure and is less prone to oxidation if compared with in-cylinder soot. Additionally, GDI particles are less-ordered, more inorganic and metallic containing, and more reactive than diesel particles. Afterwards, the impacts of engine operating parameters and aftertreatments on GDI soot features are discussed in detail. Finally, the conclusions and future research recommendations are presented.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/165956