Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2011-08-01

Journal: JOURNAL OF MATERIALS RESEARCH

Included Journals: EI、SCIE、Scopus

Volume: 26

Issue: 16

Page Number: 2024-2032

ISSN: 0884-2914

Abstract: Carbon nanocoils (CNCs) with diameter from 100 to 150 nm have been synthesized by catalytic decomposition of acetylene at 700 degrees C using Fe-Sn-O catalyst film prepared by a spin-coating method. The CNCs are much smaller in diameter than those synthesized using the catalysts prepared by a sol-gel method and a solution-dipping method. It is found that catalyst films with different morphologies are obtained by changing the spin-coating times, which lead to the formation of different multilayer carbon nanostructures, including CNCs/carbon layer/vertically aligned carbon nanotubes sandwich-like structures, and CNCs/carbon double-layer structures. Based on the experimental results, the growth mechanism of the multilayer carbon nanostructures has been proposed.