HARRICK PLASMA

A high volume and low damage route to hydroxyl functionalization of carbon nanotubes using hard X-ray lithography

The efficient functionalization of large quantities of carbon nanotubes entangled in a non-woven fashion into bucky-papers has been demonstrated through exposure to hard X-rays generated by a synchrotron source. The X-ray beam solely functionalized the carbon nanotube outer walls and an optimum X-ray exposure energy between 1048 J cm-2 and 2096 J cm-2 has been found to achieve maximum hydroxyl group density. Sol-gel reaction between a commercial fluoro-silane and the hydroxyl-modified carbon nanotubes was successfully performed resulting in an even distribution of fluoride atoms on the carbon nanotube surface, opening the way for the mass production of functionalized carbon nanotubes.

Dumee, Ludovic F., Kallista Sears, Benedetta Marmiroli, Heinz Amenitsch, Xiaofei Duan, Robert Lamb, Dario Buso, Chi Huynh, Stephen Hawkins, Sandra Kentish, et al.

Carbon

51

430-434

2013

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