Journal
CATALYSIS TODAY
Volume 183, Issue 1, Pages 26-33Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2011.07.004
Keywords
DWCNTs growth; Narrow diameter distribution; Water-assisted CVD; Co-Mo/MgO catalyst
Funding
- Natural Science Foundation of China [20736007]
- Program of Introducing Talents to the University Disciplines [B06006]
- Program for Changjiang Scholars and Innovative Research Teams in Universities [IRT 0641]
Ask authors/readers for more resources
Double-walled carbon nanotubes (DWCNTs) with a narrow diameter distribution have been synthesized with the assistance of water vapor in a fluidized-bed reactor from methane over a Co-Mo/MgO catalyst. The results reveal that an appropriate amount of water enhances the carbon yield and also changes the diameter distribution of the DWCNTs. An excess amount of water depresses the formation of carbon nanotubes due to the stabilization of the Co-molybdate phase. Water facilitates the formation of adjacent Co and CoO phases, and therefore methane activation and carbon nanotube formation. The formation of adjacent Co and CoO phases results in smaller Co nanoparticles. DWCNTs with narrow diameter distribution are produced with this method at a low cost. (C) 2011 Elsevier B. V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available