کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
218681 463212 2014 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ion transfer kinetics at the micro-interface between two immiscible electrolyte solutions investigated by electrochemical impedance spectroscopy and steady-state voltammetry
ترجمه فارسی عنوان
سینتیک انتقال یون در رابط میکرو بین دو راه حل الکترولیت نامحلول بررسی شده توسط طیف سنجی امپدانس الکتروشیمیایی و ولتامتری حالت ایستا
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• We compare kinetic data obtained for the transfer of TEA+ across ITIES.
• Impedance spectroscopy yields similar data as steady state voltammetry.
• The apparent standard rate constant is close to 0.2 cm s−1.

The kinetics of tetraethylammonium (TEA+) ion transfer across the water/1,2-dichloroethane interface was studied using electrochemical impedance spectroscopy and steady-state voltammetry. The liquid/liquid interface was supported at the tip of a microcapillary. A novel capillary design methodology has advantageously allowed the use of the same microcapillary in a number of different experiments. It is herein shown that the geometry of the microcapillary tip region is of critical importance in order to obtain reliable kinetic data. Both steady-state voltammetry and electrochemical impedance spectroscopy yielded approximately the same apparent standard rate constant of 0.2 cm s−1 for TEA+ transfer across the water/1,2-dichloroethane.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 731, 1 October 2014, Pages 107–111
نویسندگان
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