Kinetics of Catalysis-Driven Aggregation Processes with Sequential Input of Catalyst
Kinetics of Catalysis-Driven Aggregation Processes with Sequential Input of Catalyst作者机构:School of Physics and Electronic Information Wenzhou University Wenzhou 325027 China
出 版 物:《Communications in Theoretical Physics》 (理论物理通讯(英文版))
年 卷 期:2008年第49卷第1期
页 面:235-238页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:The project supported by National Natural Science Foundation of China under Grant No.10305009 the Natural Science Foundation of Zhejiang Province of China under Grant No.102067
主 题:kinetic behavior catalysis aggregation scaling law
摘 要:We investigate the kinetic behavior of a two-species catalysis-driven aggregation model, in which coagulation of species A occurs only with the help of species B. We suppose the monomers of species B are stable and cannot selfcoagulate in reaction processes. Meanwhile, the monomers are continuously injected into the system. The model with a constant rate kernel is investigated by means of the mean-field rate equation. We show that the Mneties of the system depends crucially on the details of the input term. The injection rate of species B is assumed to take the given time- dependent form K(t) -t^λ, and the sealing solution of the duster size distribution is then investigated analytically. It is found that the cluster size distribution can satisfy the conventional or modified scaling form in most cases.