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Synthesis of carbon nanotubes and nanofibers on silica and cement matrix materials

Mudimela, Prasantha R. (author)
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
Nasibulina, Larisa I. (author)
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
Nasibulin, Albert G. (author)
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
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Cwirzen, Andrzej (author)
Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo
Valkeapää, Markus (author)
Laboratory of Inorganic Chemistry, Department of Chemistry, Helsinki University of Technology, Espoo
Habermehl-Cwirzen, Karin (author)
Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo
Malm, Jari E M (author)
Laboratory of Inorganic Chemistry, Department of Chemistry, Helsinki University of Technology, Espoo
Karppinen, Maarit J. (author)
Laboratory of Inorganic Chemistry, Department of Chemistry, Helsinki University of Technology, Espoo
Penttala, Vesa (author)
Laboratory of Building Materials Technology, Faculty of Engineering and Architecture, Helsinki University of Technology, Espoo
Koltsova, Tatiana S. (author)
Material Science Faculty, State Polytechnical University
Tolochko, Oleg V. (author)
Material Science Faculty, State Polytechnical University
Kauppinen, Esko I. (author)
NanoMaterials Group, Department of Applied Physics and Center for New Materials, Helsinki University of Technology, Espoo
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 (creator_code:org_t)
Hindawi Limited, 2009
2009
English.
In: Journal of Nanomaterials. - : Hindawi Limited. - 1687-4110 .- 1687-4129. ; 2009
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Infrastructure Engineering (hsv//eng)

Keyword

Structural Engineering
Konstruktionsteknik

Publication and Content Type

ref (subject category)
art (subject category)

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