TITLE

Interrelation between cluster formation time, cluster growth probability, and nucleation rate

AUTHOR(S)
Kashchiev, Dimo
PUB. DATE
August 2007
SOURCE
Journal of Chemical Physics;8/14/2007, Vol. 127 Issue 6, p064505
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Approximate expressions are derived for the mean time τ for formation of a cluster of n molecules in nucleation of single-component phases. The derivation elucidates the interrelation between τ, the cluster growth probability P, and the stationary nucleation rate. The extraction of both τ(n) and P(n) data from individual cluster growth curves obtained in experiments or simulations is discussed. It is shown that the analysis of τ(n) data allows a model-independent determination of the nucleus size, the Zeldovich factor, the stationary nucleation rate, the frequency with which molecules are attached to the nucleus, and the difference between the works to form the nucleus and the smallest “cluster” of one molecule.
ACCESSION #
26231525

 

Related Articles

  • Testing of a structural model of sebacate clusters. Rybin, E. // Colloid Journal;Jul2008, Vol. 70 Issue 4, p466 

    Experimental data on the nucleation of vapors of sebacates, which are low-volatile liquids with relatively long-chain molecules, have been analyzed. The work of cluster formation has been calculated in terms of simplest structural models. The structural model of the clusters, which implies them...

  • molecule.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p1483 

    An encyclopedia entry for "molecule," which refers to any electrically neutral aggregate of atoms held together to be considered as a unit, is presented.

  • The field theoretical study of chemical interaction in terms of the Rigged QED: new reactivity indices. Paweł Szarek; Akitomo Tachibana // Journal of Molecular Modeling;Jul2007, Vol. 13 Issue 6/7, p651 

    Abstract  How the mode of bonding affects stability and reactivity of molecule on the frame of nonrelativistic limit of the rigged quantum electrodynamics using new indices for description of bond properties related to bond orders have been characterized here. These indices are...

  • Exploiting both C[sub 3v] symmetry and sparsity in vibrational calculations for methanelike molecules. Poirier, Bill // Journal of Chemical Physics;7/1/2003, Vol. 119 Issue 1, p90 

    In a recent article [J. Chem. Phys. 118, 6946 (2003)], X.-G. Wang and T. Carrington, Jr. presented an efficient method for computing the vibrational bend levels of five-atom molecules. The method is particularly useful if four of the five atoms are identical, in which case G[SUB4] symmetry may...

  • Comparison between solutions of the general dynamic equation and the kinetic equation for nucleation and droplet growth. Holten, V.; van Dongen, M. E. H. // Journal of Chemical Physics;1/7/2009, Vol. 130 Issue 1, p014102 

    A comparison is made between two models of homogeneous nucleation and droplet growth. The first is a kinetic model yielding the master equations for the concentrations of molecular clusters. Such a model does not make an explicit distinction between nucleation and droplet growth. The second...

  • Influence of initial conditions on homogeneous nucleation kinetics in a closed system. Kozˇísˇek, Zdeneˇk; Demo, Pavel // Journal of Chemical Physics;10/8/2005, Vol. 123 Issue 14, p144502 

    The formation of nuclei of a new phase from the supersaturated mother phase in a closed system is studied. The depletion of the mother phase due to phase transition is taken into account. Basic kinetic equations describing such process are solved numerically to determine the number density of...

  • What is the best definition of a liquid cluster at the molecular scale? Wedekind, Jan; Reguera, David // Journal of Chemical Physics;10/21/2007, Vol. 127 Issue 15, p154516 

    We investigate the ability of different cluster definitions to serve as a good reaction coordinate in molecular simulations of nucleation. In particular, the most commonly used Stillinger criterion [J. Chem. Phys. 38, 1486 (1963)] is compared with the cluster definition introduced by ten Wolde...

  • A new kind of alchemy. Ball, Philip // New Scientist;4/16/2005, Vol. 186 Issue 2495, p30 

    The article focuses on the chemical behavior of chemical elements. Superatoms are clusters of atoms of a particular chemical element that can take on the properties of entirely different elements. The chemical behavior can be altered, sometimes drastically, by the addition of just one extra...

  • Aromatic Borozene. Szwacki, N. Gonzalez; Weber, V.; Tymczak, C. J. // Nanoscale Research Letters;Sep2009, Vol. 4 Issue 9, p1085 

    Based on our comprehensive theoretical investigation and known experimental results for small boron clusters, we predict the existence of a novel aromatic inorganic molecule, B12H6. This molecule, which we refer to as borozene, has remarkably similar properties to the well-known benzene....

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics