Effects of different carbon precursors on synthesis of multiwall carbon nanotubes: Purification and Functionalization

The effect of periodic magnetic field on the fabrication and field emission properties of nanocrystalline diamond films

“…Moreover, structures resembling carbon nanotubes can be observed (represented by the red rows in Fig. 2(c)) [8], and the main result of increasing to 30,000 rpm is the growing number of such structures. Generally, methane concentrations for growth of nanotube need to be higher than for nanocrystalline diamond in the HFCVD.…”

Pre-treatment of multi-walled carbon nanotubes for polyetherimide mixed matrix hollow fiber membranes

“…The presence of these impurities may significantly affect the characteristic of CNTs. Therefore, purification of the CNTs is very important for applications that exploit their intrinsic properties [13]. In present study, in order to improve the quality of the MWCNTs, the MWCNTs were first subjected to dry phase air oxidation followed by washing with non-oxidizing acid HCl prior to the surfactant dispersion to remove amorphous carbon and metallic catalyst found in the as-grown nanotubes.…”

Direct growth of vertically aligned carbon nanotubes on silicon substrate by spray pyrolysis of Glycine max oil

“…Ferrocene has been shown to be a good precursor of iron nanoparticles suitable to catalyze CNT growth [16][17]. Conventionally hydrocarbons such as methane, ethane, ethylene, acetylene, xylene and ethanol were used as a carbon source for the synthesis of CNTs [18][19][20][21][22][23]. The number of studies utilizing low-cost carbon sources for the synthesis of CNTs such as botanical hydrocarbon is very limited [24][25][26][27][28].…”