Some aspects of the synthesis of multiwalled carbon nanotubes by chemical vapor deposition and characteristics of the material obtained

Klimov, E. S.; Buzaeva, M. V.; Davydova, O. A.; Makarova, I. A.; Светухин, В. В.; Kozlov, D. V.; Pchelintseva, E. S.; Bunakov, N. A.

doi:10.1134/s1070427214080163

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…When obtaining nanotubes from the vapor phase (CVD method), a hydrocarbon (methane, ethylene, acetylene) is passed over a metal-containing catalyst at temperatures of 500-800 • C. The method is widely used but has several drawbacks, including the need to maintain high temperatures, as well as the low yield of nanotubes. One of the most promising methods for the formation of structures with a developed surface morphology is metalorganic chemical vapor deposition (MOCVD) using volatile organometallic compounds (metallocenes) and hydrocarbon precursors [80,81]. The use of this method makes it possible to avoid catalyst passivation and makes the pyrolysis process almost continuous.…”

Section: Basic Methods For the Synthesis Of Carbon Nanotubesmentioning

confidence: 99%

The Use of Carbon-Containing Compounds to Prepare Functional and Structural Composite Materials: A Review

et al. 2022

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The review presents data on the synthesis, properties of carbon-containing compounds, and their application in the technology of obtaining functional and structural composites. Such materials are widely used in recent years due to their good physical and mechanical properties. The review discusses in detail the influence of the chemical composition of various carbon-containing substances and the size of the dispersed phase on the mechanical and physical properties of produced metal matrix composite. The review also concerns methods for the modern synthesis of graphene, carbon nanotubes, and metallic functional and structural composites with reinforcing carbon-containing compounds. Additionally, the results of metal matrix composite modeling are presented. They show that the improved mechanical properties of CNT–Al composites can be attributed to three factors: CNT hardening, matrix grain refinement, and layered architecture.

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Section: Basic Methods For the Synthesis Of Carbon Nanotubesmentioning

confidence: 99%

The Use of Carbon-Containing Compounds to Prepare Functional and Structural Composite Materials: A Review

et al. 2022

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“…The synthesis of multi-walled carbon nanotubes (MWCNTs) was carried out in an argon stream by chemical vapor deposition using organometallic and carbon-containing compounds (MOCVD method). Ferrocene and toluene were used as precursors [15]. The surface of carbon nanotubes is chemically inert and is activated in various ways.…”

Section: Preparation Of Functionalized Mwcntsmentioning

confidence: 99%

Preparation and properties of electrically conductive film nanocomposites

Makarova

Buzaeva²,

Segeev³

2023

E3S Web of Conf.

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This paper presents methods of obtaining film structures based on polyvinyl alcohol, polymethylmethacrylate with multi-walled carbon nanotubes on various substrates by pulling out of solution and drying with subsequent application of metal contacts. Test samples of polymer film structures with carbon nanotubes with curing in strong electric and magnetic fields for the orientation of with multi-walled carbon nanotubes in the polymer were prepared. The topography of the film surface was studied by atomic force microscopy. By treating nanotubes in a solution of iron chloride (III) and NaOH in diethylene glycol, their magnetic susceptibility is significantly increased, which makes it possible to equalize such "magnetic" carbon nanotubes in the polymer in magnetic fields with an induction of less than 0,5 T. The volt-ampere, C-V and noise characteristics of film structures at temperatures from – 60 ° C to 100 ° C and pressures up to 2 MPa were studied.

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“…Toluene and ferrocene were used as the precursors. The deposition of MCNTs was carried out at 850°C in a cylindrical quartz reactor with cylindical quartz inserts [3].…”

Section: Experimental the Synthesis Of Carbon Nanotubesmentioning

confidence: 99%