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Journal of Polymer Research

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01-08-2013 | Original Paper

The growth mechanism of multi-wall carbon nanotubes produced by pyrolyzing polypropylene composite

Authors: Shibin Nie, Xiang Dong, Chao Peng, Benxia Li, Ningning Hong, Yuan Hu

Published in: Journal of Polymer Research | Issue 8/2013

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Abstract

The growth mechanism of multi-wall carbon nanotubes (MWCNTs) produced by pyrolyzing polypropylene composite were studied. Scanning electron microscopy, transmission electron microscopy and high resolution electron microscopy (HRTEM) were employed to demonstrate that the charred residue formed from PP/organically modified montmorillonite/nickel oxide (Ni₂O₃) composite contains an abundance of MWCNTs with almost homogeneous distribution of diameters. X-ray diffraction and HRTEM reveals that a real active site for the growth of MWCNTs is Ni not Ni₂O₃. Meanwhile, the growth mechanism described as the yarmulke mechanism is proposed based on the experimental analysis.

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Title: The growth mechanism of multi-wall carbon nanotubes produced by pyrolyzing polypropylene composite
Authors: Shibin Nie
Xiang Dong
Chao Peng
Benxia Li
Ningning Hong
Yuan Hu
Publication date: 01-08-2013
Publisher: Springer Netherlands
Published in: Journal of Polymer Research / Issue 8/2013
Print ISSN: 1022-9760
Electronic ISSN: 1572-8935
DOI: https://doi.org/10.1007/s10965-013-0215-4

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