کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10275792 | 463395 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rhodium electrodeposition on pyrolytic graphite electrode: Analysis of chronoamperometric curves
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The electrodeposition of metallic rhodium on pyrolytic graphite from 10Â mM Na3RhCl6 +0.5Â M NaCl aqueous solution was investigated for the first time. From the analysis of chronoamperometric curves, the nucleation kinetics was compared for two-dimensional (2D) and three-dimensional (3D) electrodeposition processes, applying various models. Rh electrodeposition at â172 and â232Â mV vs. Ag/AgCl was interpreted in terms of 3D process of progressive type which turns into instantaneous one at more negative potentials. The principal nucleation parameters (nucleation rate constant, nucleation density) are calculated by using two frequently used models for 3D nucleation and growth (Scharifker-Mostany and Mirkin-Nilov-Heerman-Tarallo), using different fitting procedures. It is shown that both models give similar results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 581, Issue 1, 15 July 2005, Pages 22-30
Journal: Journal of Electroanalytical Chemistry - Volume 581, Issue 1, 15 July 2005, Pages 22-30
نویسندگان
Oleg Brylev, Lionel Roué, Daniel Bélanger,