کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9617712 | 49186 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of vertically aligned carbon nanotube films on macroporous alumina substrates
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This communication reports experimental efforts to grow vertically aligned carbon nanotube (CNT) films on macroporous α-Al2O3 disks of 20 mm in diameter. Vertically aligned CNT films could not be obtained by the methods of preloading catalyst. About 10 μm thick vertically aligned CNT films were obtained on the macroporous alumina disks by chemical vapor deposition with the alumina substrates exposed first to a flow of ferrocene in NH3 then to a flow of acetylene and NH3 for about 10 min at substrate temperature of 800 °C. The CNTs are about 100 nm in diameter and have a bamboo-type structure, with pore openings of about 4.2 nm in diameter. Possible formation mechanism of vertical aligned CNTs on the disk was also discussed in this communication.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 81, Issues 1â3, 6 June 2005, Pages 185-189
Journal: Microporous and Mesoporous Materials - Volume 81, Issues 1â3, 6 June 2005, Pages 185-189
نویسندگان
Wanliang Mi, Jerry Y.S. Lin, Yongdan Li, Baoquan Zhang,