Kinetics of Diazonium Functionalization of Chemically Converted Graphene Nanoribbons

被引：257

作者：

Sinitskii, Alexander ^{[1
]}

Dimiev, Ayrat ^{[1
]}

Corley, David A. ^{[1
]}

Fursina, Alexandra A. ^{[1
]}

Kosynkin, Dmitry V. ^{[1
]}

Tour, James M. ^{[1
,2
,3
,4
,5
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

[2] Rice Univ, Dept Comp Sci, Houston, TX 77005 USA

[3] Rice Univ, Dept Mech Engn, Houston, TX 77005 USA

[4] Rice Univ, Dept Mat Sci, Houston, TX 77005 USA

[5] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA

来源：

ACS NANO | 2010年 / 4卷 / 04期

关键词：

graphene; graphene nanoribbons; diazonium chemistry; kinetics; functionalization; CARBON NANOTUBES; AROMATIC ARYLATIONS; SURFACES; DEVICES; SALTS; MODULATION; MONOLAYERS; MOLECULES; SHEETS;

D O I：

10.1021/nn901899j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate that graphene nanoribbons (GNRs) produced by the oxidative unzipping of carbon nanotubes can be chemically functionalized by diazonium salts. We show that functional groups form a thin layer on a GNR and modify its electrical properties. The kinetics of the functionalization can be monitored by probing the electrical properties of GNRs, either in vacuum after the grafting, or in situ in the solution. We derive a simple kinetics model that describes the change in the electrical properties of GNRs. The reaction of GNRs with 4-nitrobenzene diazonium tetrafluoroborate is reasonably fast, such that >60% of the maximum change in the electrical properties is observed after less than 5 min of grafting at room temperature.

引用

页码：1949 / 1954

页数：6

共 25 条

[1] Functionalization of carbon nanotubes by electrochemical reduction of aryl diazonium salts: A bucky paper electrode [J].