کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8017797 1517227 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of monodisperse reduced graphene oxide/polyacrylonitrile composite and its thermal-induced structural transformation
ترجمه فارسی عنوان
تهیه ترکیبات گرافن اکسید / پلی آکریلونیتریل و تغییرات ساختاری ناشی از حرارتی آن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
The polyacrylonitrile/reduced graphene oxide (PAN/r-GO) composite was fabricated through dispersion of GO in PAN/DMSO solution, evaporation of DMSO to form PAN/GO film, and chemical reduction of the film by l-ascorbic acid (l-AA) aqueous. The optical and SEM images showed that the r-GO was monodisperse in the film. The UV-vis and FTIR spectrum of PAN/GO and PAN/r-GO confirmed the reduction of GO and the stability of PAN in l-AA aqueous. During the thermal stabilization of PAN/r-GO, r-GO restrained the cyclization and dehydrogenation reaction of PAN, but facilitated the formation of large conjugated structure. The r-GO plane also acted as a template for the growth of pseudo-graphite sheet, which is contributory to form large size pseudo-graphite microcrystal containing relatively less defects during carbonization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 161, 15 December 2015, Pages 108-111
نویسندگان
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