Gram-scale CCVD synthesis of double-walled carbon nanotubes
نویسندگان
چکیده
منابع مشابه
Gram-scale CCVD synthesis of double-walled carbon nanotubes.
Synthesis of clean double-walled carbon nanotubes by a catalytic chemical vapour deposition (CCVD) method is reported; the catalyst is a Mg(1 - x)Co(x)O solid solution containing additions of Mo oxide; this MgO-based catalyst can be easily removed, leading to gram-scale amounts of clean carbon nanotubes, 77% of which are double-walled carbon nanotubes.
متن کاملNew Ccvd Generation and Characterization of Single-walled Carbon Nanotubes
Bulk amount of single-walled carbon nanotubes (SWNTs) have been generated by laser-oven or arc-discharge techniques, and recently by catalytic chemical vapor deposition (CCVD) technique. CCVD technique is being intensively developed for the possibility of larger-scale production of high quality SWNTs at a low cost. We have demonstrated the high-quality generation of SWNTs by utilizing gas phase...
متن کاملLarge Scale CVD Synthesis of Single-Walled Carbon Nanotubes
The synthesis of bulk amounts of high quality single-walled carbon nanotubes (SWNTs) is accomplished by optimizing the chemical compositions and textural properties of the catalyst material used in the chemical vapor deposition (CVD) of methane. A series of catalysts are derived by systematically varying the catalytic metal compounds and support materials. The optimized catalysts consist of Fe/...
متن کاملDouble-walled carbon nanotubes: synthesis, structural characterization, and application
1School of Polymer Science and Engineering, Chonnam National University, Gwangju 500-757, Korea 2Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan 3Faculty of Engineering, Shinshu University, Nagano 380-8553, Japan 4Department of Physics, Department of Materials Science and Engineering and Materials Research Institute, The Pennsyl...
متن کاملBundles of identical double-walled carbon nanotubes.
In a sample produced by catalytic chemical vapor deposition (CCVD), the structure of the carbon nanotubes (diameter and helicity) which governs their electronic properties, is determined by electron diffraction. We found that most of the smallest bundles are constituted of identical double-walled carbon nanotubes.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical Communications
سال: 2003
ISSN: 1359-7345,1364-548X
DOI: 10.1039/b301514a