کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5370382 1388488 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphite-epoxy resin solid composite electrode, in the presence of different anions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphite-epoxy resin solid composite electrode, in the presence of different anions
چکیده انگلیسی

This work studied the process of electrochemical formation of polypyrrole, Ppy, over a graphite-epoxy resin composite electrode in the presence of different anions: DS−, NO3− and Cl−. It was shown by means of AFM that the morphological characteristics and the formation kinetics of the Ppy deposit, from analysis of experimental current density transients, are strongly dependent on the nature of the anion present. It was found that for all cases, the formation mechanism involves the simultaneous presence of adsorption and 3D nucleation, limited by diffusion of the different pyrrole oligomer species, processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 252, Issue 16, 15 June 2006, Pages 5783-5792
نویسندگان
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