A stainless steel grid baked by a propane-air premixed flame had iron, chromium and nickel oxide deposits on the grid surface. With this grid, entangled and curved shape multi-walled carbon nanotubes (MWNTs) were harvested from an ethylene-air diffusion flame with yield rate of 3 mg/min. Nitrogen addition to the flame was found to straighten the entangled tubes probably by lowering the flame temperature. A cobalt-electrodeposited stainless steel grid was finally applied to the nitrogen-diluted ethylene diffusion flame; well-aligned and well-graphitized carbon nanotubes consisting of 20 nm diameter and 10 μm long element tubes were obtained.
|Number of pages||6|
|Journal||Chemical Physics Letters|
|State||Published - Sep 28 2001|
Bibliographical noteFunding Information:
This study was sponsored by National Science Foundation under the MRSEC program (DMR-9809686). We would like to acknowledge the valuable comments from Professor F.A. Williams and Professor A.S. Gordon. We also acknowledge Bob Gregory for his editing work.
ASJC Scopus subject areas
- Physics and Astronomy (all)
- Physical and Theoretical Chemistry