Collision efficiency factor for heteroaggregation: Extension to soft interactions

Olsen, Aaron, Franks, George, Biggs, Simon and Jameson, Graeme J. (2008) Collision efficiency factor for heteroaggregation: Extension to soft interactions. Journal of Chemical Physics, 128 4: . doi:10.1063/1.2776263

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Author Olsen, Aaron
Franks, George
Biggs, Simon
Jameson, Graeme J.
Title Collision efficiency factor for heteroaggregation: Extension to soft interactions
Journal name Journal of Chemical Physics   Check publisher's open access policy
ISSN 0021-9606
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1063/1.2776263
Open Access Status File (Publisher version)
Volume 128
Issue 4
Total pages 8
Place of publication College Park, MD United States
Publisher American Institute of Physics
Language eng
Subject 3107 Atomic and Molecular Physics, and Optics
Abstract An improved model for the collision efficiency factor of clusters of oppositely charged spheres has been developed, which accounts for repulsive and attractive interactions that occur at a finite distance from the colliding species, i.e., the so-called "soft" interactions. Trends in measured optimum dosages for rapid aggregation with increasing Debye length (a decrease at particle size ratios between 0.3 and 1 and an increase at particle size ratios less than 0.3) are explained qualitatively by employing the modified collision efficiency model. Several observations from the literature, specifically the formation of stringlike aggregates at low ionic strength and the uneven optimum dosage requirements of particles of equal size, are also explained in view of the model presented.
Keyword Chemistry, Physical
Physics, Atomic, Molecular & Chemical
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Engineering, Architecture and Information Technology -- Student Publications
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 2 times in Scopus Article | Citations
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