کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
195288 459811 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The electroreduction kinetics of silver sulfite complexes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The electroreduction kinetics of silver sulfite complexes
چکیده انگلیسی

The electroreduction kinetics of silver sulfite complexes was investigated by rotation disk electrode (RDE) voltammetry, chronopotentiometry (CP) and electrochemical impedance spectroscopy (EIS). The stability constants of the silver sulfite complexes, pβ2 = 7.9 and pβ3 = 8.53 were determined. For the series of isopotential solutions investigated, a reaction order of 0.67 was obtained, the diffusion coefficient of the silver complexes varies in the range of 3.36 × 10−6 to 5.54 × 10−6 cm2 s−1 and the silver degree of complexation (2.31–2.67) were found. The analysis of the RDE, CP data and EIS spectra indicate the existence of a slow stage of the silver electrocrystallization in the region of the equilibrium potential and at stronger polarization of the electrode at initial time moments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 53, Issue 22, 20 September 2008, Pages 6513–6520
نویسندگان
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