Unravelling the mechanisms behind mixed catalysts for the high yield production of single-walled carbon nanotubes.
The use of mixed catalysts for the high-yield production of single-walled carbon nanotubes is well-known. The mechanisms behind the improved yield are poorly understood. In this study, we systematically explore different catalyst combinations from Ni, Co, and Mo for the synthesis of carbon nanotubes via laser evaporation. Our findings reveal that the mixing of catalysts alters the catalyst cluster size distribution, maximizing the clusters' potential to form a hemispherical cap at nucleation and, hence, form a single-walled carbon nanotube. This process significantly improves the single-walled carbon nanotube yields.
Tetali
Sailaja
S
IFW Dresden, D-01171 Dresden, Germany.
Zaka
Mujtaba
M
Schönfelder
Ronny
R
Bachmatiuk
Alicja
A
Börrnert
Felix
F
Ibrahim
Imad
I
Lin
Jarrn H
JH
Cuniberti
Gianaurelio
G
Warner
Jamie H
JH
Büchner
Bernd
B
Rümmeli
Mark H
MH
D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008956:Models, Chemical; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties
D046911:Macromolecular Substances; D037742:Nanotubes, Carbon