RT Journal Article
ID 3bf676a574a74d93
A1 Alinejad, Yasaman
A1 Shahverdi, Ali
A1 Kim, Keun Su
A1 Soucy, Gervais
T1 THE EFFECT OF DIFFERENT TYPES OF CARBON BLACK ON THE PRODUCTION OF SINGLE-WALLED CARBON NANOTUBES BY THE INDUCTION THERMAL PLASMA METHOD
JF High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
JO HTM
YR 2010
FD 2010-04-20
VO 14
IS 1-2
SP 101
OP 117
K1 Single-walled carbon nanotubes
K1 synthesis
K1 carbon source
K1 carbon black
K1 RF induction thermal plasma
AB Due to their exceptional properties, large amounts of single-walled carbon nanotubes (SWCNTs) have been increasingly used in a wide range of applications, and consequently, the economical production of high quality SWCNT is becoming a matter of major concerns. For this reason, carbon black is getting increasingly popular as a carbon source in SWCNT productions, principally because of its relatively low-cost and good market availability &#91; 1,2&#93;. In this work, SWCNTs have been synthesized using eight different grades of carbon blacks in order to investigate the effects of the carbon black structure and its impurity content, on the SWCNT formation, when utilized in the newly developed RF induction thermal plasma process &#91;2&#93;. In the synthesis experiment, the SWCNTs are produced by the direct evaporation of a mixture of carbon black and catalysts (i.e., a ternary mixture consisting of Ni, Co, and Y<sub>2</sub>O<sub>3</sub>) inside the plasma plume &#91;2&#93;. The properties of the raw materials and products have been studied by the means of many characterization techniques such as, X-ray diffraction and Raman spectroscopy. Thermodynamic equilibrium compositions of the mixture of the carbon black and the catalysts used as a feedstock were also calculated theoretically to obtain a better understanding of the effects of carbon black grades on SWCNT production. Both the experimental and theoretical results show that the physico-chemical properties of the carbon blacks such as particle size, sulphur content, and grain size, all have significant effects on the quality of the SWCNT produced. However, they seem to have a negligible effect on the diameter distribution of the SWCNT.
PB Begell House
LK https://www.dl.begellhouse.com/journals/57d172397126f956,227c67f42b79464a,3bf676a574a74d93.html