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Synthesis of carbon nanotubes and nanofibers on silica and cement matrix materials
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo.
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo.
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo.
Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo.ORCID iD: 0000-0001-6287-2240
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2009 (English)In: Journal of Nanomaterials, ISSN 1687-4110, E-ISSN 1687-4129, Vol. 2009, article id 526128Article in journal (Refereed) Published
Abstract [en]

In order to create strong composite materials, a good dispersion of carbon nanotubes (CNTs) and nanofibers (CNFs) in a matrix material must be obtained. We proposed a simple method of growing the desirable carbon nanomaterial directly on the surface of matrix particles. CNTs and CNFs were synthesised on the surface of model object, silica fume particles impregnated by iron salt, and directly on pristine cement particles, naturally containing iron oxide. Acetylene was successfully utilised as a carbon source in the temperature range from 550 to 750 °C. 5-10 walled CNTs with diameters of 10-15nm at 600 °C and 12-20nm at 750 °C were synthesised on silica particles. In case of cement particles, mainly CNFs with a diameter of around 30nm were grown. It was shown that high temperatures caused chemical and physical transformation of cement particles. © 2009 Prasantha R. Mudimela et al.

Place, publisher, year, edition, pages
2009. Vol. 2009, article id 526128
National Category
Infrastructure Engineering
Research subject
Structural Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-4423DOI: 10.1155/2009/526128Scopus ID: 2-s2.0-77649244969Local ID: 25ea770b-47b5-4353-b917-dd8fa0f81222OAI: oai:DiVA.org:ltu-4423DiVA, id: diva2:977296
Note

Upprättat; 2009; 20160222 (andcwi)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-08-20Bibliographically approved

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Cwirzen, AndrzejHabermehl-Cwirzen, Karin

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