Kvaerner Technology Research Ltd.

Kvafrner Technology and Research Ltd.

Ragne Hildrum

Ketil Hox

Steinar Lynum

Jan Hugdahl

Magne Nordvik

This invention relates to a method for producing micro-domain graphitic materials by use of a plasma process, and to novel micro-conical graphitic materials. By micro-domain graphitic material we mean fullerenes, carbon nanotubes, open conical carbon structures (also named micro-cones), preferably flat graphitic sheets, or a mixture of two or all of these. The novel carbon material is open carbon micro-cones with total disclination degrees of 60&#xb0; and/or 120&#xb0;, corresponding to cone angles of respectively 112.9&#xb0; and/or 83.6&#xb0;.

Micro-domain graphitic materials and method for producing the same

This invention relates to a carbon media for storage of hydrogen characterized in that it comprises known and novel micro-domain materials and that it is produced by a one or two-step plasma process. In the one-step plasma process conventional carbon black or graphitic carbon black can be formed. In the two-step plasma process, a hydrocarbon feed material is sent through a plasma zone and becomes partly dehydrogenated in the first step to form polycyclic aromatic hydrocarbons (PAHs), and is then sent through second plasma zone to become completely dehydrogenated to form micro-domain graphitic materials in the second step. By micro-domain graphitic materials we mean fullerenes, carbon nanotubes, open conical carbon structures (also named micro-cones), flat graphitic sheets, or a mixture of two or all of these. The novel carbon material is open carbon micro-cones with total disclination degrees 60&deg; and/or 120&deg;, corresponding to cone angles of respectively 112.9&deg; and/or 83.6&deg;.

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Ragne Hildrum