A Cyclic Catalyst Pretreatment in CO2 for High Yield Production of Carbon Nanofibers with Narrow Diameter Distribution

This paper presents a cyclic catalyst pretreatment process to improve the CNF yield with narrow size distribution by sequentially feeding the CVD reactor with CH 4 /CO 2 mixtures (carbon deposition) and CO 2 (carbon removal) prior to the actual growth process. A mechanism based on a break-up of larg...

Full description

Saved in:
Bibliographic Details
Published in:Catalysis letters 2011-11, Vol.141 (11), p.1621-1624
Main Authors: Corthals, Steven, Van Noyen, Jasper, Liang, Duoduo, Ke, Xiaoxing, Van Tendeloo, Gustaaf, Jacobs, Pierre, Sels, Bert
Format: Article
Language:English
Subjects:
Carbon
Carbon dioxide
Carbon fibers
Catalysis
Catalysts
Chemical vapor deposition
Chemistry
Chemistry and Materials Science
Exact sciences and technology
General and physical chemistry
Industrial Chemistry/Chemical Engineering
Methane
Nanofibers
Organometallic Chemistry
Particle size distribution
Physical Chemistry
Pretreatment
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents a cyclic catalyst pretreatment process to improve the CNF yield with narrow size distribution by sequentially feeding the CVD reactor with CH 4 /CO 2 mixtures (carbon deposition) and CO 2 (carbon removal) prior to the actual growth process. A mechanism based on a break-up of large Ni particles tentatively explains the beneficial effect of the cyclic carbon deposition/removal CVD procedure. Graphical Abstract A cyclic catalytic CVD process for the one-step production of CNFs from CH 4 /CO 2 mixtures is presented. Successive carbon deposition/removal cycles in CO 2 rich conditions lead to high quality CNFs with narrow size distribution.
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-011-0690-3