کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1690184 1518951 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbon nanomaterials synthesized using a spray pyrolysis method
ترجمه فارسی عنوان
نانومواد کربنی با استفاده از یک روش پیلوریس اسپری سنتز شده است
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
Carbon nanomaterials were synthesized using a spray pyrolysis chemical vapor deposition system (SPCVD). By varying the reaction temperature or flow rate of the carbon source, the structure or morphology of the synthesized carbon nanocoils (CNCs) can be controlled. A vertical chemical vapor deposition (CVD) furnace with a three-stage heating zone was employed to synthesize carbonaceous nanomaterials using nano-Pd catalysts at growth temperatures of 600, 700, and 800 °C. The morphology of the synthesized carbon products and the relationship between the carbon source concentration and its yield were evaluated. The results showed that CNCs formed at a lower temperature (600 °C), whereas straight carbon nanotubes were obtained at a higher temperature (700 or 800 °C). The structure and morphology of the carbonaceous samples were observed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Their graphite crystallinity was analyzed using Raman spectroscopy. When the three heating zones of the vertical CVD chamber were set to different temperatures, a unique nano-carbonaceous material with a special morphology similar to an octopus tentacle was formed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 118, August 2015, Pages 94-99
نویسندگان
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