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A Kinetic Model to Describe Nanocrystal Growth by the Oriented Attachment Mechanism
Author(s) -
Ribeiro Caue,
Lee Eduardo J. H.,
Longo Elson,
Leite Edson R.
Publication year - 2005
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200400505
Subject(s) - ostwald ripening , nanoparticle , nanocrystal , nanotechnology , hydrothermal circulation , materials science , coagulation , mechanism (biology) , particle (ecology) , chemical physics , chemistry , chemical engineering , physics , geology , engineering , psychology , oceanography , quantum mechanics , psychiatry
The classical model of particle coagulation on colloids is revisited to evaluate its applicability on the oriented attachment of nanoparticles. The proposed model describes well the growth behavior of dispersed nanoparticles during the initial stages of nanoparticle synthesis and during growth induced by hydrothermal treatments. Moreover, a general model, which combines coarsening (i.e., Ostwald ripening) and oriented attachment effects, is proposed as an alternative to explain deviations between experimental results and existing theoretical models.