کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1419883 986069 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Aligned millimeter-long carbon nanotube arrays grown on single crystal magnesia
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Aligned millimeter-long carbon nanotube arrays grown on single crystal magnesia
چکیده انگلیسی

Single crystal magnesium oxide (MgO) was found to be very beneficial to the growth of aligned carbon nanotube (CNT) arrays as long as 2.2 mm by chemical vapor deposition. Before growth, a thin film of catalyst (iron) was coated on the MgO by magnetron sputtering. Scanning electron microscopy was used to study the alignment and length, and transmission electron microscopy was used to exam the wall numbers, diameter, and graphitization. It was found that the number of walls as few as two can be controlled by the catalyst film thickness, whereas the length is a combined result of gas pressure, temperature, and time during growth. Water was found not to be a factor to the length of CNTs grown on MgO, but a significant factor when sapphire was used as the substrates.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 44, Issue 5, April 2006, Pages 969–973
نویسندگان
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