کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
196007 459830 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Poly(aniline-co-o-aminophenol) nanostructured network: Electrochemical controllable synthesis and electrocatalysis
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Poly(aniline-co-o-aminophenol) nanostructured network: Electrochemical controllable synthesis and electrocatalysis
چکیده انگلیسی

Poly(aniline-co-o-aminophenol) (copolymer) with nanostructured network has been synthesized in the presence of ferrocenesulfonic acid, using repeated potential cycling between −0.10 and 0.86 V (versus SCE). The sizes of the fibers in the nanostructures can be controlled by the number of the cycles during copolymerization. The presence of ferrocenesulfonic acid possessing a larger molecular size with positive charges is favorable for the formation of nanostructures. The SEM images reveal a fact that the copolymer films synthesized under different cycles are constructed of interwoven fibers with average diameters in a range of 70–107 nm. The copolymer with the nanostructured network deposited on a platinum foil offers a convenient way to study directly the electrochemical property of nanostructures and can effectively catalyze the electrochemical oxidation of catechol in the Na2SO4 solution with pH 5.0. It was found that the electrochemical oxidation of catechol was affected by the sizes of the copolymer fibers. Evidence is that its anodic peak potential increases with increasing the diameter of the fibers in the nanostructures. The copolymer synthesized in the presence of ferrocenesulfonic acid has a good electrochemical activity at pH ≤ 9.0, a larger usable potential window and faster electron transfer ability compared with the copolymer synthesized in the absence of ferrocenesulfonic acid.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 17, 25 April 2006, Pages 3434–3440
نویسندگان
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