کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
273509 505045 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reactivity of H2O gas with the surface of polycrystalline Li2O pellet
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Reactivity of H2O gas with the surface of polycrystalline Li2O pellet
چکیده انگلیسی

Ultraviolet/X-ray photoelectron spectroscopy was performed for a polycrystalline pellet sample of Li2O, in order to elucidate the interaction of H2O with the Li2O surface. By H2O-gas exposures of 0–13 L (1 L = 1.33 × 10−4 Pa s), a variation was induced in the electronic structure, corresponding to the formation of surface –OH via the dissociative adsorption of H2O. No clear qualitative difference arose either in the electronic structure or in the reactivity to H2O between the polycrystalline pellet and the Li2O (1 1 1) single crystal. The variation in the contribution of –OH to the total intensity of the O 1s peak was investigated as a function of the amount of H2O-gas exposure, and the result was discussed in conjunction with an adsorption/absorption model using a Monte Carlo simulation. It was indicated that not only adsorption, but also absorption up to a few surface layers occurred with a high probability even in the annealed sample.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 81, Issues 1–7, February 2006, Pages 613–618
نویسندگان
, , , ,