کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9759320 | 1497707 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of hydrogen desorption from a metal to a closed reservoir
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The dynamics of hydrogen release from metals to the closed volume at a fixed temperature is studied. The surface lag-time of hydrogen depending on both the reaction of association of hydrogen atoms into a molecule and the presence of impurity barriers at the surface is taken into account by means of introduced coefficient of boundary permeability. It has been shown that the time dependence of hydrogen pressure is characterized by three stages. These are the linear stage, the square-root stage and the approaching of equilibrium according to the exponential law. The model allows to reveal the predominant mechanism influencing hydrogen release on the base of the form of the kinetic curve.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 30, Issue 5, April 2005, Pages 509-514
Journal: International Journal of Hydrogen Energy - Volume 30, Issue 5, April 2005, Pages 509-514
نویسندگان
E.P. Feldman, A.D. Alexeev, T.N. Melnik, L.N. Gumen,