کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9634206 | 463399 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impedance of porous gold electrodes in the presence of electroactive species
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Electrode processes of hexaamineruthenium(III) and tris(1,10-phenanthroline)cobalt(II) were studied on various porous gold electrodes in 1 M NaNO3 and H2SO4. The results were compared with those obtained on the polycrystalline gold electrodes. Impedance spectra were analyzed and charge transfer resistances determined. For the redox reactions in solutions in some cases two semicircles were observed on the complex plane plots. The experimental results were compared with the theory of electrochemical processes taking place on the porous electrodes developed earlier [A. Lasia, J. Electroanal. Chem., 428 (1997) 155, A. Lasia, J. Electroanal. Chem., 500 (2001) 30], which predicts formation of two semicircles on the complex plane plots for a simple one-electron redox system. Their nature and occurrence is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 582, Issues 1â2, 15 August 2005, Pages 85-96
Journal: Journal of Electroanalytical Chemistry - Volume 582, Issues 1â2, 15 August 2005, Pages 85-96
نویسندگان
R. Jurczakowski, C. Hitz, A. Lasia,