NDLI: Structure phases of fe nanoparticles in vertically aligned multi-walled carbon nanotubes

Content Provider	Springer Nature Link
Author	Chechenin, N. G. Chernykh, P. N. Vorobyeva, E. A. Dutka, M. V. Vainshtein, D. I. Hosson, J. Th. M.
Copyright Year	2015
Abstract	Structure and composition of arrays of vertically aligned multi-walled carbon nanotubes grown by continuous injection chemical vapor deposition method were studied using the high resolution transmission electron microscopy combined with energy dispersion spectrometry. A portion of injected Fe catalyst was found in the form of nanosized single crystalline particles with a variety of the structures of α-Fe(C), γ-Fe(C) and orthorhombic Fe$_{3}$C phases encapsulated in the carbon nanotube channel or incorporated into the carbon nanotube wall. A thorough analysis revealed not only the lattice expansion of the γ-Fe(C) phase due to incorporation of carbon atoms but also a monoclinic distortion of the cubic lattice with orts c > a = b and square base transformed into a rhombic one. The monoclinic lattice distortion was referred to the uniaxial symmetry of the encapsulating tube. No evident coherency was observed in the atomic arrangement at the interface between Fe particle and inner shell of the carbon tube, as well as in the atomic arrangement of neighboring graphene shells of the carbon nanotube wall, meaning that the chirality of the shells is not coherent.
Starting Page	1044
Ending Page	1055
Page Count	12
File Format	PDF
ISSN	10274510
Journal	Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques
Volume Number	9
Issue Number	5
e-ISSN	18197094
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-10-16
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	multi-walled carbon nanotubes ferrocene nanocrystalline gamma-iron high resolution transmission electron microscopy chirality Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Surfaces, Coatings and Films

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