کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1418421 986001 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of effluent gases during the CCVD growth of multi-wall carbon nanotubes from acetylene
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Analysis of effluent gases during the CCVD growth of multi-wall carbon nanotubes from acetylene
چکیده انگلیسی
Catalytic chemical vapor deposition was used to grow multi-walled carbon nanotubes on a Fe:Co:CaCO3 catalyst from acetylene. The influent and effluent gases were analyzed by gas chromatography and mass spectrometry at different time intervals during the nanotubes growth process in order to better understand and optimize the overall reaction. A large number of byproducts were identified and it was found that the number and the level for some of the carbon byproducts significantly increased over time. The CaCO3 catalytic support thermally decomposed into CaO and CO2 resulting in a mixture of two catalysts for growing the nanotubes, which were found to have outer diameters belonging to two main groups 8-35 nm and 40-60 nm, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 44, Issue 10, August 2006, Pages 2032-2038
نویسندگان
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