SET Mechanism in the Functionalization of Single-Walled Carbon Nanotubes

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• 作者：Jayanta Chattopadhyay ; Soma Chakraborty ; Arnab Mukherjee ; Runtang Wang ; Paul S. Engel ; W. E. Billups
• 刊名：Journal of Physical Chemistry C
• 出版年：2007
• 出版时间：December 6, 2007
• 年：2007
• 卷：111
• 期：48
• 页码：17928 - 17932
• 全文大小：120K
• 年卷期：v.111,no.48(December 6, 2007)
• ISSN：1932-7455

文摘

Dispersions of carbon nanotube salts prepared by treating single-walled carbon nanotubes (SWNTs) withlithium in liquid ammonia react with aryl and alkyl sulfides by single electron transfer (SET) to yield transientradical anions that dissociate into carbon-centered free radicals and mercaptide. The free radicals add to thesidewalls of the nanotubes or recombine with SWNT radical anions. AFM images indicate that the derivatizedSWNTs are partially debundled. Disulfides react with carbon nanotube salts to yield SWNTs functionalizedby sulfur-centered radicals.