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Title: Dense arrays of well-aligned carbon nanotubes completely filled with single crystalline titanium carbide wires on titanium substrates

Abstract

We report the synthesis of dense and uniform arrays of well-aligned carbon nanotubes on titanium substrates over large areas, in which all the tubes are simultaneously and completely filled with single crystals of titanium carbide. The carbon nanotubes were synthesized by thermal chemical vapor deposition of ethylene on iron-coated substrates, while the titanium carbide was simultaneously formed inside the nanotubes through a simultaneous solid state reaction. We propose a base dissolution and precipitation mechanism for the growth of titanium carbide filled carbon nanotubes. The same method can be used to fabricate oriented nanotube arrays filled with other carbides on a variety of substrates over large scale. Such well-aligned and densely packed uniform carbon nanotubes, completely filled with nanowires on conducting substrates, will have great potential in many applications. {copyright} {ital 1999 American Institute of Physics.}

Authors:
; ; ; ;  [1]
  1. Pacific Northwest National Laboratory, P.O. Box 999, MS K8-93, Richland, Washington 99352 (United States)
Publication Date:
OSTI Identifier:
345398
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 74; Journal Issue: 24; Other Information: PBD: Jun 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; TITANIUM COMPOUNDS; CARBON; TITANIUM CARBIDES; COMPOSITE MATERIALS; CHEMICAL VAPOR DEPOSITION; PRECIPITATION; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY; SCANNING ELECTRON MICROSCOPY

Citation Formats

Gao, Y, Liu, J, Shi, M, Elder, S H, and Virden, J W. Dense arrays of well-aligned carbon nanotubes completely filled with single crystalline titanium carbide wires on titanium substrates. United States: N. p., 1999. Web. doi:10.1063/1.123208.
Gao, Y, Liu, J, Shi, M, Elder, S H, & Virden, J W. Dense arrays of well-aligned carbon nanotubes completely filled with single crystalline titanium carbide wires on titanium substrates. United States. doi:10.1063/1.123208.
Gao, Y, Liu, J, Shi, M, Elder, S H, and Virden, J W. Tue . "Dense arrays of well-aligned carbon nanotubes completely filled with single crystalline titanium carbide wires on titanium substrates". United States. doi:10.1063/1.123208.
@article{osti_345398,
title = {Dense arrays of well-aligned carbon nanotubes completely filled with single crystalline titanium carbide wires on titanium substrates},
author = {Gao, Y and Liu, J and Shi, M and Elder, S H and Virden, J W},
abstractNote = {We report the synthesis of dense and uniform arrays of well-aligned carbon nanotubes on titanium substrates over large areas, in which all the tubes are simultaneously and completely filled with single crystals of titanium carbide. The carbon nanotubes were synthesized by thermal chemical vapor deposition of ethylene on iron-coated substrates, while the titanium carbide was simultaneously formed inside the nanotubes through a simultaneous solid state reaction. We propose a base dissolution and precipitation mechanism for the growth of titanium carbide filled carbon nanotubes. The same method can be used to fabricate oriented nanotube arrays filled with other carbides on a variety of substrates over large scale. Such well-aligned and densely packed uniform carbon nanotubes, completely filled with nanowires on conducting substrates, will have great potential in many applications. {copyright} {ital 1999 American Institute of Physics.}},
doi = {10.1063/1.123208},
journal = {Applied Physics Letters},
number = 24,
volume = 74,
place = {United States},
year = {1999},
month = {6}
}