کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
193180 459764 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analytical I–E response for several multistep potential techniques applied to an electrocatalytic process at mediator modified electrodes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Analytical I–E response for several multistep potential techniques applied to an electrocatalytic process at mediator modified electrodes
چکیده انگلیسی

General analytical and explicit equations for the transient and stationary I–E responses of electrocatalytic process of soluble solution species at mediator modified electrodes, valid for any reversibility degree of the charge transfer and for any multipotential pulse technique, are presented. These expressions have been applied to staircase voltammetry (SCV) and linear sweep voltammetry (LSV), and also to their corresponding differential and derivative modalities. The value of the chemical rate constant can be easily obtained from a cathodic plateau of the SCV curves under transient and stationary conditions. Easy methods for determining other characteristic parameters of the process are proposed. The theoretical predictions have been experimentally tested.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 54, Issue 26, 1 November 2009, Pages 6154–6160
نویسندگان
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