Gaseous Detonation Synthesis of Iron-Encapsulated Multi-Walled Carbon Nanotubes

YANG Rui; LI Xiao-Jie; YAN Hong-Hao

doi:10.11858/gywlxb.2017.03.001

Volume 31 Issue 3

Apr 2017

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Chinese Journal of High Pressure Physics > 2017 > 31(3): 209-214.

YANG Rui, LI Xiao-Jie, YAN Hong-Hao. Gaseous Detonation Synthesis of Iron-Encapsulated Multi-Walled Carbon Nanotubes[J]. Chinese Journal of High Pressure Physics, 2017, 31(3): 209-214. doi: 10.11858/gywlxb.2017.03.001

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YANG Rui, LI Xiao-Jie, YAN Hong-Hao. Gaseous Detonation Synthesis of Iron-Encapsulated Multi-Walled Carbon Nanotubes[J]. Chinese Journal of High Pressure Physics, 2017, 31(3): 209-214. doi: 10.11858/gywlxb.2017.03.001

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Gaseous Detonation Synthesis of Iron-Encapsulated Multi-Walled Carbon Nanotubes

doi: 10.11858/gywlxb.2017.03.001

YANG Rui^1
,,
LI Xiao-Jie^{1, 2},
YAN Hong-Hao^{1,*
,
,}

1.
Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China
2.
State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian 116024, China

Received Date: 18 Jul 2016
Rev Recd Date: 30 Jul 2016

Abstract

Abstract

Multi-walled carbon nanotubes (MWCNTs) were synthesized via the detonation of methane and oxygen as precursors and ferrocene as catalyst in a sealed stainless steel pressure vessel.Then the MWCNTs were characterized by X-ray diffraction (XRD), transmission electron microscopy and Raman spectroscopy.The results indicate that MWCNTs present appearance of entangled morphologies with outer diameters of 20-50 nm and lengths up to several microns, which have an excellent tubular structure and a relatively high graphitization degree; A small number of iron (Fe) nanoparticles remaining in the MWCNTs consist of Fe₃C, which results from the continuous supply of carbon source and iron catalyst.XRD analysis shows that, after the detonation reaction, the catalyst is broken down and reduced to metal simple substance.Through the experimental results and theoretical analysis, we propose the formation mechanism of gas detonation synthesis of carbon nanotubes.
- gaseous detonation method,
- multi-walled carbon nanotubes,
- ferrocene,
- formation mechanism

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References(24)

References

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Gaseous Detonation Synthesis of Iron-Encapsulated Multi-Walled Carbon Nanotubes

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