QUT ePrints

Ternary Nucleation as a mechanism for the production of Diesel Nanoparticles: An experimental analysis of the Volatile and Hygroscopic Properties of Diesel Exhaust using the VH-TDMA

Meyer, Nickolas K. & Ristovski, Zoran (2007) Ternary Nucleation as a mechanism for the production of Diesel Nanoparticles: An experimental analysis of the Volatile and Hygroscopic Properties of Diesel Exhaust using the VH-TDMA. Environmental Science and Technology.

View at publisher

Abstract

The volatile and hygroscopic properties of diesel nanoparticles were simultaneously determined under a range of engine loads using the Volatilisation and Humidification Tandem Differential Mobility Analyser (VH-TDMA). Additionally, the VH-TDMA was used to measure changes in the hygroscopic behaviour of the heterogeneously nucleated diesel nanoparticles as one or more semi-volatile species were removed via thermal evaporation or decomposition. Particles produced at high loads exhibited high, dual step volatility while those particles produced at low loads were less volatile and exhibited continuous volatilization curves. The hygroscopic growth factor of the particles was shown to be load dependent with high load particles exhibiting growth factors similar to that of ammonium sulphate. At 85% relative humidity particles produced at moderate loads exhibited growth factors of ~1.1 while low load particles were shown to be hydrophobic. Growth factors and volatilization temperatures measured for high load particles clearly indicate that ternary nucleation is involved in particle formation.

Impact and interest:

22 citations in Scopus
Search Google Scholar™

Citation countsare sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 9523
Item Type: Journal Article
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.
Additional URLs:
Keywords: nanoparticles, diesel exhaust, VH, TDMA
DOI: http://dx.doi.org/10.1021/es062574v
ISSN: 0013-936X
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Sciences not elsewhere classified (040199)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2007 American Chemical Society
Copyright Statement: The contents of this journal can be freely accessed online via the ACS web page 12 months after publication. See link to ACS website.
Deposited On: 17 Sep 2007
Last Modified: 30 Jun 2014 11:28

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page