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Functionalization of Carbon NanotubesMethod and system for functionalizing a collection of carbon nanotubes (CNTs). A selected precursor gas (e.g., H2 or F2 or CnHm) is irradiated to provide a cold plasma of selected target species particles, such as atomic H or F, in a first chamber. The target species particles are d irected toward an array of CNTs located in a second chamber while suppressing transport of ultraviolet radiation to the second chamber. A CNT array is functionalized with the target species particles, at or below room temperature, to a point of saturation, in an exposure time interval no longer than about 30 sec. *Discrimination against non-target species is provided by (i) use of a target species having a lifetime that is much greater than a lifetime of a non-target species and/or (2) use of an applied magnetic field to discriminate between charged particle trajectories for target species and for non-target species.
Document ID
20090029915
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Khare, Bishun N.
Meyyappan, Meyya
Date Acquired
August 24, 2013
Publication Date
January 6, 2009
Subject Category
Composite Materials
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-7473436|NASA-Case-ARC-14661-2
Patent Application
US-Patent-Appl-SN-10/828524|US-Patent-Appl-SN-10/320698

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