کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10668887 | 1008482 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface modification of nano-SiO2 particles using polyaniline
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
An electrical conducting polyaniline/nano-SiO2 composite was obtained by surface modification of nano-SiO2 particles using polyaniline, and was characterized via Fourier transform infrared (FTIR) spectra, UV-vis absorption spectra, wide-angle X-ray diffraction (WXRD), thermogravimetric analysis (TGA), and transmission electron microscopy (TEM), as well as conductivity. Surface area, total pore volume, and pore size distribution of both nano-SiO2 particles and polyaniline/nano-SiO2 composite particles were also measured. The results of spectroanalysis show that the composite is not a simple blend of polyaniline with nano-SiO2 particles. An interaction exists at the interface of nano-SiO2 particles and polyaniline macromolecule. Polyaniline/nano-SiO2 composite contains 15% conducting polyaniline by mass, with a conductivity of 0.32 S cmâ1 at 25 °C. The dimension of polyaniline/nano-SiO2 composite particles is about 20-30 nm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 197, Issue 1, 1 July 2005, Pages 56-60
Journal: Surface and Coatings Technology - Volume 197, Issue 1, 1 July 2005, Pages 56-60
نویسندگان
Xingwei Li, Gengchao Wang, Xiaoxuan Li,