发明名称 |
Graphene nanoribbons prepared from carbon nanotubes via alkali metal exposure |
摘要 |
In various embodiments, the present disclosure describes processes for preparing functionalized graphene nanoribbons from carbon nanotubes. In general, the processes include exposing a plurality of carbon nanotubes to an alkali metal source in the absence of a solvent and thereafter adding an electrophile to form functionalized graphene nanoribbons. Exposing the carbon nanotubes to an alkali metal source in the absence of a solvent, generally while being heated, results in opening of the carbon nanotubes substantially parallel to their longitudinal axis, which may occur in a spiralwise manner in an embodiment. The graphene nanoribbons of the present disclosure are functionalized on at least their edges and are substantially defect free. As a result, the functionalized graphene nanoribbons described herein display a very high electrical conductivity that is comparable to that of mechanically exfoliated graphene. |
申请公布号 |
US8992881(B2) |
申请公布日期 |
2015.03.31 |
申请号 |
US201013378528 |
申请日期 |
2010.06.11 |
申请人 |
William Marsh Rice University |
发明人 |
Tour James M.;Kosynkin Dmitry |
分类号 |
C01B31/06;C01B31/04;C07C1/32;C07C15/20;B82Y30/00;B82Y40/00;C01B31/02 |
主分类号 |
C01B31/06 |
代理机构 |
Winstead PC |
代理人 |
Winstead PC |
主权项 |
1. A process for preparing graphene nanoribbons, said process comprising:
exposing a plurality of carbon nanotubes to an alkali metal source in the absence of a solvent, wherein the alkali metal source comprises an alkali metal vapor;
wherein exposing opens the carbon nanotubes parallel to their longitudinal axis; and after exposing, adding an electrophile to form functionalized graphene nanoribbons. |
地址 |
Houston TX US |