کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
58529 47155 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si substrates
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si substrates
چکیده انگلیسی

Electrochemical nucleation and growth of Co and CoFe alloys on Pt/Si(1 0 0) surface from watts (mixed chloride sulfate) baths were studied by voltammetric, chronoamperometric and AFM measurements. The CoFe alloys were deposited from solution with molar ratio of (1/1) and (10/1). The Scharifker and Hills model was employed to analyse the current transients. For both Co and CoFe (10/1) alloys the nucleation was a good agreement with the instantaneous model followed by 3D diffusion-limited growth. Inversely, for CoFe (1/1) alloy the nucleation was an agreement with the progressive model. It is evident that the compositions of the electrolyte influence greatly the type of nucleation. The atomic force microscopy (AFM) images revealed a compact and a granular structure of the electrodeposited Co layers and CoFe alloys.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 113, Issues 3–4, 15 April 2006, Pages 257–262
نویسندگان
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