Effect of steam-treatment time on the length and structure of single-walled and double-walled carbon nanotubes
Kierkowicz, Magdalena (Institut de Ciència de Materials de Barcelona)
Pach, Elzbieta (Institut Català de Nanociència i Nanotecnologia)
Santidrián, Ana (J. Heyrovsky Institute of the Physical Chemistry)
Tobías Rossell, Ester (Universitat de Vic - Universitat Central de Catalunya)
Kalbáč, Martin (J. Heyrovsky Institute of the Physical Chemistry)
Ballesteros, Belén (Institut Català de Nanociència i Nanotecnologia)
Tobias, Gerard (Institut de Ciència de Materials de Barcelona)

Date:	2016
Abstract:	A major challenge to turn the potential of carbon nanotubes (CNTs) into customer applications is to reduce or eliminate their toxicity. Taking into account health and safety concerns, intensified research efforts have been conducted to improve the biocompatibility of CNTs, including the development of new shortening and purification strategies. Ideally, the methods used for improving the biocompatibility of CNTs should not alter the electronic properties of CNTs. Herein, we report on the shortening of a sample containing single-walled and double-walled CNTs using steam and obtain new insights in the properties of the steam-treated CNTs. The present study shows that short CNTs (median length ca. 200 nm) can be obtained under the reported conditions. Raman analysis reveals that wider and outer nanotubes undergo more significant changes than the narrower and inner ones, especially after a prolonged steam treatment.
Grants:	European Commission 290023 Ministerio de Economía y Competitividad SEV-2013-0295
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Carbon nanotubes ; Raman spectroelectrochemistry ; Raman spectroscopy ; Scanning electron microscopy ; Shortening
Published in:	ChemNanoMat, Vol. 2, Issue 2 (February 2016) , p. 108-116, ISSN 2199-692X

DOI: 10.1002/cnma.201500207

Postprint 14 p, 1.5 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles