کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10269776 | 459892 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxygen reduction on oxide/polypyrrole composite electrodes: effect of doping anions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Oxygen reduction on oxide/polypyrrole composite electrodes: effect of doping anions Oxygen reduction on oxide/polypyrrole composite electrodes: effect of doping anions](/preview/png/10269776.png)
چکیده انگلیسی
Multilayered composite electrodes on glassy carbon, GC, having the structure GC/PPy/PPy(Ox)/PPy, with PPy the polypyrrole and Ox a mixed valence oxide of transition metals, exhibit high reactivity and stability towards the oxygen reduction reaction (orr), when the orr proceeds electrocatalytically on the oxide particles dispersed throughout the inner layer, PPy(Ox). However the nature and concentration of the doping anions, A, of PPy have a profound effect on the resulting orr currents, due to their effects on the conductivity and morphology of the PPy layers. The paper shows and discusses these effects in the case of the composite electrode with Ox = Cu1.4Mn1.6O4 and A = Clâ, ClO4â, NO3â, PF6â and SO42â, in acid solution (pH 2.2). Optimal conditions were encountered with Clâ.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 50, Issue 6, 30 January 2005, Pages 1369-1376
Journal: Electrochimica Acta - Volume 50, Issue 6, 30 January 2005, Pages 1369-1376
نویسندگان
H. Nguyen Cong, K. El Abbassi, J.L. Gautier, P. Chartier,