title: A Model for Simultaneous Homogeneous and Heterogeneous Nucleation in the Case of Slow Reaction Rate.
abstract: Our previous model for simultaneous homogeneous and heterogeneous nucleation, which was successfully tested for silver particle generation by a chemical reduction method, is extended to the case of slow reaction rate. Nucleation in a system containing seed particles in the case where the reaction rate is slow occurs according to the following rule: homogeneous nucleation is predominant when n(p)/n(0)(*),>1 (n(p) is the seed number concentration, and n(0)(*) the number concentration of homogeneously nucleated particles without seed particles), and heterogeneous nucleation is predominant when n(p)/n(0)(*)<1. This theoretical prediction is in good agreement with the experimental results obtained for zinc sulfide particles generated by homogeneous precipitation. Copyright 2000 Academic Press.
authors.affiliation: Chemical Engineering Department, Osaka Prefecture University, 1-1 Gakuencho, Sakai, 599-8531, Japan
authors.initials: T
authors.lastname: Nomura
authors.initials: Y
authors.lastname: Kousaka
authors.initials: M
authors.lastname: Alonso
authors.initials: M
authors.lastname: Fukunaga
authors.initials: T
authors.lastname: Satoh