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Media type:
E-Article
Title:
Agglomerates of nanoparticles
Contributor:
Vollath, Dieter
Published:
Beilstein Institut, 2020
Published in:
Beilstein Journal of Nanotechnology, 11 (2020), Seite 854-857
Language:
English
DOI:
10.3762/bjnano.11.70
ISSN:
2190-4286
Origination:
Footnote:
Description:
Nanoparticles tend to agglomerate. The process of agglomeration is ruled by thermodynamics. Depending on the sign of the enthalpy of interaction, ensembles consist of (repelling) poorly agglomerated or (attracting) highly agglomerated particles. For these two cases different distribution functions for the agglomerates were found. The size distribution of the agglomerates is ruled by the maximum of the entropy of the ensemble of agglomerates, which is calculated using Gibbs formula of entropy. The exact determination of the size distribution of the agglomerates also gives the maximum size of the agglomerates. These considerations lead to an improved understanding of ensembles of agglomerated nanoparticles.