کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
220829 463354 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Redox mediation at electroactive polymer coated electrodes: Mechanistic diagnosis criteria from steady state polarization curves
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Redox mediation at electroactive polymer coated electrodes: Mechanistic diagnosis criteria from steady state polarization curves
چکیده انگلیسی

In this work, we analyze the i–E response of a redox mediator modified electrode in steady state and in the absence of permeation of the reactants into the film. We show that, besides some kinetic criteria existing in the literature based on the behavior of the limiting currents, there are others based on the entire i–E response. This analysis allows to explain several features of the i–E curve, yet unexplained, such as the shift of the half wave potential, electrochemical rectification, the shape of the Koutecky–Levich plots and the shape of the E vs. ln [(iL − i)/i] plots. From them, it is possible to determine, almost unmistakably, the type of kinetic control and to obtain the corresponding kinetic parameters.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 609, Issue 2, 1 November 2007, Pages 129–139
نویسندگان
, , , ,