کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5425309 1395853 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A spectro-microscopic study of the reactive phase separation of Au + Pd and O on Rh(1 1 0)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
A spectro-microscopic study of the reactive phase separation of Au + Pd and O on Rh(1 1 0)
چکیده انگلیسی

Reorganization of Au + Pd submonolayers on a Rh(1 1 0) surface occurring during the water formation reaction has been observed and characterized by low energy electron microscopy (LEEM) and X-ray photoemission electron microscopy (XPEEM). The results demonstrate segregation of Au + Pd and oxygen into separate surface phases, the morphology and size of the O and Au + Pd patterns being governed by the reaction parameters and adsorbate coverage. At moderate Au + Pd coverages and temperatures in the range 760-860 K, lamellar periodic Au + Pd/O micro-structures are generated. The results are interpreted in terms of kinetic and thermodynamic considerations.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 601, Issue 20, 15 October 2007, Pages 4663-4668
نویسندگان
, , , , ,