The coagulation rate of charged aerosols in ionized gases

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

We obtain analytical expressions for the coagulation rate of aerosols in ionized gases taking into account the statistical distribution of the aerosol charge due to the random nature the charging process. Depending on the asymmetry of the ionic environment, the charge distribution may be bipolar (symmetric charging) or unipolar (highly asymmetric charging). In symmetric charging the attraction between opposite charges is almost exactly counter-balanced by repulsion between like charges and the net effect is a slight increase in the overall coagulation rate. In asymmetric charging all particles carry charges of the same polarity, interparticle interactions are repulsive, and the rate of coagulation decreases. However, the effect of the charge distribution in these systems is to increase the rate of coagulation above the rate that would be obtained if all particles carried the mean charge. This increase is substantial for larger particles in highly asymmetric ionic environments.

Original languageEnglish (US)
Pages (from-to)474-483
Number of pages10
JournalJournal of Colloid And Interface Science
Volume187
Issue number2
DOIs
StatePublished - Mar 15 1997

Fingerprint

Coagulation
Aerosols
Gases
Charge distribution

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

Cite this

@article{66003849f5a1457a95a8c440d63b018b,
title = "The coagulation rate of charged aerosols in ionized gases",
abstract = "We obtain analytical expressions for the coagulation rate of aerosols in ionized gases taking into account the statistical distribution of the aerosol charge due to the random nature the charging process. Depending on the asymmetry of the ionic environment, the charge distribution may be bipolar (symmetric charging) or unipolar (highly asymmetric charging). In symmetric charging the attraction between opposite charges is almost exactly counter-balanced by repulsion between like charges and the net effect is a slight increase in the overall coagulation rate. In asymmetric charging all particles carry charges of the same polarity, interparticle interactions are repulsive, and the rate of coagulation decreases. However, the effect of the charge distribution in these systems is to increase the rate of coagulation above the rate that would be obtained if all particles carried the mean charge. This increase is substantial for larger particles in highly asymmetric ionic environments.",
author = "Themis Matsoukas",
year = "1997",
month = "3",
day = "15",
doi = "10.1006/jcis.1996.4723",
language = "English (US)",
volume = "187",
pages = "474--483",
journal = "Journal of Colloid and Interface Science",
issn = "0021-9797",
publisher = "Academic Press Inc.",
number = "2",

}

The coagulation rate of charged aerosols in ionized gases. / Matsoukas, Themis.

In: Journal of Colloid And Interface Science, Vol. 187, No. 2, 15.03.1997, p. 474-483.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The coagulation rate of charged aerosols in ionized gases

AU - Matsoukas, Themis

PY - 1997/3/15

Y1 - 1997/3/15

N2 - We obtain analytical expressions for the coagulation rate of aerosols in ionized gases taking into account the statistical distribution of the aerosol charge due to the random nature the charging process. Depending on the asymmetry of the ionic environment, the charge distribution may be bipolar (symmetric charging) or unipolar (highly asymmetric charging). In symmetric charging the attraction between opposite charges is almost exactly counter-balanced by repulsion between like charges and the net effect is a slight increase in the overall coagulation rate. In asymmetric charging all particles carry charges of the same polarity, interparticle interactions are repulsive, and the rate of coagulation decreases. However, the effect of the charge distribution in these systems is to increase the rate of coagulation above the rate that would be obtained if all particles carried the mean charge. This increase is substantial for larger particles in highly asymmetric ionic environments.

AB - We obtain analytical expressions for the coagulation rate of aerosols in ionized gases taking into account the statistical distribution of the aerosol charge due to the random nature the charging process. Depending on the asymmetry of the ionic environment, the charge distribution may be bipolar (symmetric charging) or unipolar (highly asymmetric charging). In symmetric charging the attraction between opposite charges is almost exactly counter-balanced by repulsion between like charges and the net effect is a slight increase in the overall coagulation rate. In asymmetric charging all particles carry charges of the same polarity, interparticle interactions are repulsive, and the rate of coagulation decreases. However, the effect of the charge distribution in these systems is to increase the rate of coagulation above the rate that would be obtained if all particles carried the mean charge. This increase is substantial for larger particles in highly asymmetric ionic environments.

UR - http://www.scopus.com/inward/record.url?scp=0030732227&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030732227&partnerID=8YFLogxK

U2 - 10.1006/jcis.1996.4723

DO - 10.1006/jcis.1996.4723

M3 - Article

AN - SCOPUS:0030732227

VL - 187

SP - 474

EP - 483

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

IS - 2

ER -