کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9595003 | 1507961 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A simple model for two competing chemical reactions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A simple model for two competing chemical reactions A simple model for two competing chemical reactions](/preview/png/9595003.png)
چکیده انگلیسی
We study a competitive reaction model in one dimension with different reactivity weights for the reactions. We consider the A + A â A2 auto-catalytic reaction model and the A + B â AB monomer-monomer reaction model, where A and B are monomers arriving at the surface with probabilities yA and yB, respectively. The model is studied in the site and pair mean field approximations, and by Monte Carlo simulations. The phase diagram of the model displays a line of continuous phase transitions between active and poisoned states, and we determined the critical exponents, β and ν⥠of the model. Our results indicate that the critical behavior of the model does not change with the reactivity rate, and it belongs to the directed percolation universality class.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 598, Issues 1â3, 20 December 2005, Pages 200-208
Journal: Surface Science - Volume 598, Issues 1â3, 20 December 2005, Pages 200-208
نویسندگان
E.C. da Costa, W. Figueiredo,