Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1661784 | Surface and Coatings Technology | 2008 | 7 Pages |
Abstract
We investigated the restructuring of Fe catalyst films during high temperature processing and its effects on the morphologies of carbon nanotubes (CNTs) arrays synthesized using the thermal chemical vapor deposition (CVD) techniques. Results show that annealing time and gas environment deeply influence the particle size distribution, which determines the morphologies of the corresponding CNT arrays. Fe particles with narrow size distribution were obtained after proper high temperature processing in NH3, from which higher purity CNT arrays with better-alignment and uniform diameter distribution have been grown.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Huaping Liu, Guo-An Cheng, Ruiting Zheng, Yong Zhao, Changlin Liang,