کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5423163 | 1507952 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reactive ion scattering from ice in a molecular dynamics perspective
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The thickness of the ice structure at the surface greatly affects the abstraction efficiency. From a thin ice overlayer all alkaline ions exhibit similar scattering probabilities, but Cs+ abstracts water molecules most efficiently; its lower speed facilitates a mechanism where the Cs+ in its outgoing trajectory pulls water molecules out of the ice structure. From a thick ice structure the scattering probabilities decrease dramatically due to an effective energy transfer to the ice structure. A more grazing angle of incidence reduces the energy transfer and enhances the scattering probabilities for the lighter alkaline ions. The deprived formation of ion-water clusters in the simulations confirms that from thick ice the cluster formation probability is reduced by at least three orders of magnitude.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 604, Issues 13â14, 15 July 2010, Pages 1135-1142
Journal: Surface Science - Volume 604, Issues 13â14, 15 July 2010, Pages 1135-1142
نویسندگان
R.J.W.E. Lahaye,