کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7921163 | 1511745 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A general strategy for direct synthesis of reduced graphene oxide by chemical exfoliation of graphite
ترجمه فارسی عنوان
یک استراتژی کلی برای سنتز مستقیم کاهش اکسید گرافین توسط اکسید کربن گرافیت
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کلمات کلیدی
کاهش اکسید گرافین، اکسیداسیون گرافیت، لایه برداری، کاهش،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In this work, a first stage of synthesis to obtain reduced graphene oxide (rGO) using an efficient chemical exfoliation method from graphite was studied. An ammonium hydroxide and a nitric-sulfuric acid mixture were used for in situ oxidation and partial-reduction of graphite. Flakes with a thickness of 3â¯nm were observed by using AFM, suggesting the presence of ten or less graphene layers. The average C/O atomic percentage ratio obtained was 4.27, which is similar to those results obtained by conventional reduction processes associated with using hydrazine. In addition, a graphitic nitrogen functionalization was observed during the proposed process. Besides that, the precursor of rGO suspension obtained remained stable for six months. Therefore, the present study showed a less aggressive and dangerous chemistry route in order to rGO production than others previously reported works.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 218, 1 October 2018, Pages 51-61
Journal: Materials Chemistry and Physics - Volume 218, 1 October 2018, Pages 51-61
نویسندگان
A.F. Betancur, N. Ornelas-Soto, A.M. Garay-Tapia, F.R. Pérez, Ángel Salazar, A.G. GarcÃa,