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Kinetic evolutionary behavior of catalysis-select migration |
| Wu Yuan-Gang(吴远刚), Lin Zhen-Quan(林振权)†, and Ke Jian-Hong(柯见洪) |
| Department of Physics, Wenzhou University, Wenzhou 325035, China |
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Abstract We propose a catalysis-select migration driven evolution model of two-species (A- and B-species) aggregates, where one unit of species A migrates to species B under the catalysts of species C, while under the catalysts of species D the reaction will become one unit of species B migrating to species A. Meanwhile the catalyst aggregates of species C perform self-coagulation, as do the species D aggregates. We study this catalysis-select migration driven kinetic aggregation phenomena using the generalized Smoluchowski rate equation approach with C species catalysis-select migration rate kernel K(k;i,j)=Kkij and D species catalysis-select migration rate kernel J(k;i,j)=Jkij. The kinetic evolution behaviour is found to be dominated by the competition between the catalysis-select immigration and emigration, in which the competition is between JD0 and KC0 (D0 and C0 are the initial numbers of the monomers of species D and C, respectively). When JD0-KC0>0, the aggregate size distribution of species A satisfies the conventional scaling form and that of species B satisfies a modified scaling form. And in the case of JD0-KC0<0, species A and B exchange their aggregate size distributions as in the above JD0-KC0>0 case.
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Received: 15 September 2011
Revised: 05 January 2012
Accepted manuscript online:
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PACS:
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82.20.-w
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(Chemical kinetics and dynamics)
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05.40.-a
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(Fluctuation phenomena, random processes, noise, and Brownian motion)
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68.43.Jk
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(Diffusion of adsorbates, kinetics of coarsening and aggregation)
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89.75.Da
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(Systems obeying scaling laws)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10875086 and 10775104). |
Corresponding Authors:
Lin Zhen-Quan
E-mail: linzhenquan@yahoo.com.cn
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Cite this article:
Wu Yuan-Gang(吴远刚), Lin Zhen-Quan(林振权), and Ke Jian-Hong(柯见洪) Kinetic evolutionary behavior of catalysis-select migration 2012 Chin. Phys. B 21 068201
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