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The Structure and Properties of Carbon Cones


Dátum akcie: 2013-04-23

Prednáška v rámci seminára Fyziky kondenzovaných látok a projektu “KVARK”

The Structure and Properties of Carbon Cones

prof. Dr. Geir Helgesen
Physics Department, Institute for Energy Technology, Kjeller, Norway and Department of Physics, University of Oslo, Oslo, Norway

Miesto seminára: Prírodovedecká fakulta, UPJŠ, Jesenná 5, Košice, 1. poschodie, Videokonferenčná miestnosť
Dátum: 23. apríl 2013 (utorok)
Čas: 13:30 hod.

Abstract:
It is possible to make perfect conical carbon nanostructures that are fundamentally different from other nanocarbon materials such as buckyballs and nanotubes. These carbon cones are realized in five distinctly different forms. They consist of curved graphene sheets formed as open cones with one to five carbon pentagons at the tip with successively smaller cone apex angles, ranging from 112.9o to 19.2o. Disk-shaped particles are also produced in the same pyrolysis process. The structure and physical properties of these carbon cones and disks have been relatively little explored. The functional properties of carbon cones appear to be different from those of other forms of carbon, due to fundamentally different topology and symmetry. Results will be presented from studies of the structure of these nanoparticles using scanning- and transmission electron microscopy, X-ray- and electron diffraction. The particles also have interesting magnetic properties, and their application for creating conductive polymer composites will be presented.

   Autor: Rastislav Adamek

Pridané: 2013-04-16  



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Selected topics in magnetism



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Inštitúcie


Univerzita P. J. Šafárika v Košiciach
Prírodovedecká fakulta UPJŠ

Katedry


Katedra biofyziky
Katedra fyziky kondenzovaných látok
Katedra jadrovej a subjadrovej fyziky
Katedra teoretickej fyziky a astrofyziky
Oddelenie didaktiky fyziky

Projekty


Establish
Modernizácia vzdelávania
Veda na scéne Slovensko
SCIENCENET
Nebojte sa fyziky
Študenti a učitelia v CERNe
Objavujme krásy fyziky
Tvorivý učiteľ fyziky

Projekty


SeeVogh System
Moodle
Celim

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