The efficient functionalization of large quantities of carbon nanotubes entangled in a nonwoven 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 cm2 and 2096 J cm2 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.
A high volume and low damage route to hydroxyl functionalization of carbon nanotubes using hard X-ray lithography / Ludovic F., Dumée; Kallista, Sears; Benedetta, Marmiroli; Heinz, Amenitsch; Xiaofei, Duan; Robert, Lamb; Dario, Buso; Chi, Huynh; Stephen, Hawkins; Sandra, Kentish; Mikel, Duke; Stephen, Gray; Innocenzi, Plinio; Anita J., Hill; Paolo, Falcaro. - In: CARBON. - ISSN 0008-6223. - 51:(2013), pp. 4 2 7-4 3 4. [10.1016/j.carbon.2012.08.065]
A high volume and low damage route to hydroxyl functionalization of carbon nanotubes using hard X-ray lithography
INNOCENZI, Plinio;
2013-01-01
Abstract
The efficient functionalization of large quantities of carbon nanotubes entangled in a nonwoven 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 cm2 and 2096 J cm2 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
