کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5186844 1381115 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic electroxidation pathway for the polymerization of polypyrrole in the presence of ultrafine silver nanoparticles
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Catalytic electroxidation pathway for the polymerization of polypyrrole in the presence of ultrafine silver nanoparticles
چکیده انگلیسی

In this work, we report the first electrochemical polymerization of polypyrrole (PPy) on Au substrates in aqueous solutions containing additives of prepared Ag nanoparticles with a diameter less than 2 nm. Due to the effect of Ag nanoparticles, which can provide a catalytic electroxidation pathway for the polymerization of PPy, the synthesized PPy film demonstrates some novel characteristics. It shows a finer and granular raspberry morphology with nano-scaled particles, and a rougher surface. The conductivity of PPy is significantly increased (∼8 times), which also reflects on the extremely high oxidation level of 0.35 revealed from the analysis of X-ray photoelectron spectroscopy (XPS). The mechanism of the nucleation and growth was investigated to explain the specific characteristics of PPy films.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 24, 21 November 2005, Pages 10727-10732
نویسندگان
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