کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8001037 | 1516278 | 2014 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Single-step synthesis of graphene-carbon nanofiber hybrid material and its synergistic magnetic behaviour
ترجمه فارسی عنوان
سنتز یک مرحله ای از مواد ترکیبی نانوفایبر گرافن و رفتار مغناطیسی آن
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
مواد نانوساختار، سنتز شیمیایی، رسوب بخار، کاتالیزوری، اندازه گیری مغناطیسی، ریز ساختار،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Graphene-carbon nanofiber (CNF) hybrid materials were synthesized by a simple one-step chemical vapour deposition method using propane over a Co63Ni37 alloy catalyst supported on a silicon substrate at 800 °C. The process involves catalyst de-wetting, carbon diffusion and precipitation, with the additional carbon being provided by the polymer (photo-resist, HPR-504). The formation of a graphene-CNF hybrid structure was observed in the presence of the polymer. The polymer plays a crucial role in the formation of the flat carbon nanostructures. In the absence of the polymer, only carbon nanotube growth was observed with the same catalyst under identical experimental conditions. The effect of the polymeric photo-resist layer on the growth of the hybrid structure was analyzed. Structural and morphological data in combination with the Raman spectroscopic data confirmed the formation of a few layers of highly crystalline graphene and CNFs in a hybrid structure. The magnetic behaviour of these as-grown graphene-CNF hybrid samples has been analyzed by using a superconducting quantum interference device (SQUID). The results from the magnetic measurements on these samples have also been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 615, 5 December 2014, Pages 348-354
Journal: Journal of Alloys and Compounds - Volume 615, 5 December 2014, Pages 348-354
نویسندگان
R.K. Sahoo, P. Jeyapandiarajan, K. Devi Chandrasekhar, B.S.S. Daniel, A. Venimadhav, S.B. Sant, C. Jacob,