Organic Covalent Patterning of Nanostructured Graphene with Selectivity at the Atomic Level

被引：39

作者：

Jesus Navarro, Juan ^{[1
]}

Leret, Sofia ^{[1
]}

Calleja, Fabian ^{[1
]}

Stradi, Daniele ^{[1
,2
]}

Black, Andres ^{[1
,3
,4
]}

Bernardo-Gavito, Ramon ^{[1
,3
,4
]}

Garnica, Manuela ^{[1
,3
,4
]}

Granados, Daniel ^{[1
]}

Vazquez de Parga, Amadeo L. ^{[1
,3
,4
]}

Perez, Emilio M. ^{[1
]}

Miranda, Rodolfo ^{[1
,3
,4
]}

机构：

[1] IMDEA Nanociencia, Madrid 28049, Spain

[2] Univ Autonoma Madrid, Dept Quim, E-28049 Madrid, Spain

[3] Univ Autonoma Madrid, Dept Fis Mat Condensada, E-28049 Madrid, Spain

[4] Univ Autonoma Madrid, IFIMAC, E-28049 Madrid, Spain

来源：

NANO LETTERS | 2016年 / 16卷 / 01期

基金：

欧洲研究理事会;

关键词：

Nanostructured graphene; epitaxial graphene; chemical functionalization; scanning tunneling microscopy; SCANNING-TUNNELING-MICROSCOPY; EPITAXIAL GRAPHENE; LARGE-AREA; FUNCTIONALIZATION; HYDROGENATION; MANIPULATION; CHEMISTRY; RADICALS; ALKENES; FILMS;

D O I：

10.1021/acs.nanolett.5b03928

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Organic covalent functionalization of graphene with long-range periodicity is highly desirable-it is anticipated to provide control over its electronic, optical, or magnetic properties-and remarkably challenging. In this work we describe a method for the covalent modification of graphene with strict spatial periodicity at the nanometer scale. The periodic landscape is provided by a single monolayer of graphene grown on Ru(0001) that presents a moire pattern due to the mismatch between the carbon and ruthenium hexagonal lattices. The moire contains periodically arranged areas where the graphene ruthenium interaction is enhanced and shows higher chemical reactivity. This phenomenon is demonstrated by the attachment of cyanomethyl radicals (CH2CN center dot) produced by homolytic breaking of acetonitrile (CH3CN), which is shown to present a nearly complete selectivity (>98%) binding covalently to graphene on specific atomic sites. This method can be extended to other organic nitriles, paving the way for the attachment of functional molecules.

引用

页码：355 / 361

页数：7

共 55 条

[1] Controlling Hydrogenation of Graphene on Ir(111) [J].