کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5423596 1507954 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical characterization of methanol adsorption on the bare and oxygen precovered Cu(1 1 0) surface
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Optical characterization of methanol adsorption on the bare and oxygen precovered Cu(1 1 0) surface
چکیده انگلیسی
We have studied the adsorption and reaction of methanol on the bare and oxygen precovered Cu(1 1 0) surface at 200 K using reflectance difference spectroscopy (RDS). On the bare and fully oxygen covered surface, the sticking coefficient is close to zero. In contrast, on the partially oxygen covered surface, a sticking coefficient close to unity is obtained. This observation suggests a high mobility of methanol on both bare and oxygen covered Cu(1 1 0) and of methoxy on Cu(1 1 0). Two reaction regimes, an oxygen supply limited and an adsorption site limited regime are identified. The transition between these two regimes occurs for an oxygen coverage of about 0.2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 604, Issues 9–10, 15 May 2010, Pages 824-828
نویسندگان
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