کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
179580 459356 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The underpotential deposition that should not be: Cu(1 × 1) on Au(111)
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The underpotential deposition that should not be: Cu(1 × 1) on Au(111)
چکیده انگلیسی

Underpotential deposition of copper on Au(111) is analyzed in the light of first-principles calculations. The existence of a 1 × 1 Cu monolayer on Au(111) at underpotentials can be only understood taking into account the free energy excess delivered by the adsorption of sulfate anions. While a naked copper pseudomorphic monolayer results thermodynamically less stable than bulk copper, accounting for the interaction with sulfate ions delivers an underpotential shift which is comparable with the experimental value.


► Underpotential deposition of copper on Au(111) is analyzed in the light of first-principles calculations.
► The effect of adsorbed sulfate anions on this phenomenon is studied.
► It is concluded that coadsorption of SO4= anions may explain by itself the stability of the Cu 1 × 1 monolayer on Au(111).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 25, November 2012, Pages 54–57
نویسندگان
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