Identification

Title

Unary and binary heterogeneous nucleation of organic vapors on monodisperse WOx seed particles with diameters down to 1.4 nm

Abstract

Unary and binary heterogeneous nucleation has been studied experimentally using monodisperse tungsten oxide (WOx) particles in the size range from 1.4 nm up to 7 nm. WOx particles were generated using a commercially available WOx generator in combination with a nanoDMA for size selection. n-Propanol and n-nonane as well as mixtures thereof were used as the nucleating substances. The experiments were performed with an expansion-type condensation particle counter in combination with a constant-angle Mie scattering detector providing counting efficiency of 100% down to at least 3 nm particle diameter. The binary n-propanol-n-nonane system was found to co-nucleate only reluctantly which is in agreement with homogeneous nucleation experiments as well as composition of critical clusters as determined by the heterogeneous nucleation theorem. The size dependent measurements for the pure systems revealed that n-nonane leads to contamination of the chamber at particle sizes below 4 nm. In contrast, n-propanol is suitable to detect particles as small as 1.4 nm.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7w95br6

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

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keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

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Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2011-03-01T00:00:00Z

Frequency of update

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Use constraints

This is an electronic version of an article published in Aerosol Science and Technology, Volume 45, Issue 4, 2011, Pages 493 - 498. Aerosol Science and Technology is available online at: http://www.tandfonline.com/openurl?genre=article&issn=02786826&volume=45&issue=4&spage=493

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact