کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1558569 999311 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Growth of carbon nanotubes by the catalytic decomposition of methane over Fe-Mo/Al2O3 catalyst: effect of temperature on tube structure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد شیمی مواد
پیش نمایش صفحه اول مقاله
Growth of carbon nanotubes by the catalytic decomposition of methane over Fe-Mo/Al2O3 catalyst: effect of temperature on tube structure
چکیده انگلیسی
The effects of temperature, reaction time, and flow rate on the structure of carbon nanotubes (CNTs) were studied using catalytic chemical vapor deposition of methane over an Fe-Mo/Al2O3 catalyst. Results show that the temperature is a key parameter to control the wall thickness of the CNTs. Low temperature leads to the formation of multiwalled carbon nanotubes (MWCNTs) with wall thickness of 2-7 nm. Relatively high temperature is in favor of the growth of double-walled carbon nanotubes (DWCNTs), whereas high temperature promotes the generation of single-walled carbon nanotubes (SWCNTs). A further increase of temperature results in the generation of MWCNTs with a wall thickness of 3-15 nm and large carbon particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Carbon Materials - Volume 24, Issue 4, December 2009, Pages 307-313
نویسندگان
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