کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1527280 1511856 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Controllable growth of nanostructured carbon from coal tar pitch by chemical vapor deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Controllable growth of nanostructured carbon from coal tar pitch by chemical vapor deposition
چکیده انگلیسی

The direct synthesis of vapor grown carbon fibers with different diameters was achieved by the pyrolysis of coal tar pitch by chemical vapor deposition. The products were characterized by field-emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction and Raman spectroscopy. The experimental results demonstrated that ferrocene content, reaction temperature and Ar flow rate strongly influenced the yield and nature of nanostructured carbon materials, pure carbon microbeads, with diameter distribution ranging from 450 to 650 nm, were also obtained in the absence of catalyst, uniform and straight carbon nanofibers with the outer diameter of about 115 nm were obtained and curl and thick carbon fibers with narrow diameter distribution of 300–350 nm were produced.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 104, Issues 2–3, 15 August 2007, Pages 320–326
نویسندگان
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