ORBi: Gommes Cédric - Image analysis characterization of multi-walled carbon nanotubes

Reference : Image analysis characterization of multi-walled carbon nanotubes


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics Engineering, computing & technology : Materials science & engineering Physical, chemical, mathematical & earth Sciences : Chemistry
	To cite this reference:	http://hdl.handle.net/2268/5945

Title :	Image analysis characterization of multi-walled carbon nanotubes
Language :	English
Author, co-author :	Gommes, Cédric [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
	Blacher, Silvia [Université de Liège - ULg > Département des sciences cliniques > Labo de biologie des tumeurs et du développement >]
	Masenelli-Varlot, Karine [INSA de Lyon > UMR CNRS 5510 > Groupe d’ Etudes de Métallurgie Physique et de Physique des Matériaux >]
	Bossuot, Charles [Nanocyl SA > > > > > >]
	McRae, Edward [> > > >]
	Fonseca, Antonio [Facultés Universitaires Notre Dame de la Paix - Namur > > > > > >]
	Nagy, Janos B. [Facultés Universitaires Notre Dame de la Paix - Namur > > > >]
	Pirard, Jean-Paul [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Publication date :	2003
Journal title :	Carbon
Publisher :	Pergamon-Elsevier Science Ltd
Volume :	41
Issue/season :	13
Pages :	2561-2572
Audience :	International
ISSN :	0008-6223
City :	Oxford
Keywords :	[en] carbon nanotubes ; transmission electron microscopy (TEM) ; image analysis
Abstract :	[en] An original image analysis method is presented to characterize multi-walled carbon nanotubes from transmission electron microscopy images. The analysis is performed in three steps: (i) image preprocessing in order to isolate the nanotubes from the background, (ii) image segmentation, aiming at keeping only the measurable sections of nanotubes, and finally (iii) tube characteristics measurement. The measurement is based on a Lambert-like electron absorption law and is performed on the original gray level image itself. Two geometrical and one physical characteristics are determined for each tube, namely, its outer and inner radius and a linear electron absorption coefficient. The method is illustrated by comparing a pristine and an annealed carbon nanotube samples. The compaction of the tube walls during annealing is shown to result from a lowering of the external radius while the inner radius is left unchanged. (C) 2003 Elsevier Ltd. All rights reserved.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/5945

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