Functionalization of Liquid-Exfoliated Two-Dimensional 2H-MoS2

被引：240

作者：

Backes, Claudia ^{[1
,3
]}

Berner, Nina C. ^{[1
,2
]}

Chen, Xin ^{[1
,2
]}

Lafargue, Paul ^{[1
,2
]}

LaPlace, Pierre ^{[1
,2
]}

Freeley, Mark ^{[1
,2
]}

Duesberg, Georg S. ^{[1
,2
]}

Coleman, Jonathan N. ^{[1
,3
]}

McDonald, Aidan R. ^{[2
]}

机构：

[1] TCD, CRANN AMBER Nanosci Inst, Coll Green, Dublin 2, Ireland

[2] TCD, Sch Chem, Dublin 2, Ireland

[3] TCD, Sch Phys, Dublin 2, Ireland

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 09期

基金：

爱尔兰科学基金会;

关键词：

2D materials; carboxylate ligands; liquid exfoliation; surface functionalization; transition-metal dichalcogenides; MOS2; NANOSHEETS; CHEMISTRY; GRAPHENE; RAMAN; LAYERS; EDGE; SIZE;

D O I：

10.1002/anie.201409412

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Layered two-dimensional (2D) inorganic transition-metal dichalchogenides (TMDs) have attracted great interest as a result of their potential application in optoelectronics, catalysis, and medicine. However, methods to functionalize and process such 2D TMDs remain scarce. We have established a facile route towards functionalized layered MoS2. We found that the reaction of liquid-exfoliated 2DMoS(2), with M(OAc)(2) salts (M=Ni, Cu, Zn; OAc=acetate) yielded functionalized MoS2-M(OAc)(2) materials. Importantly, this method furnished the 2H-polytype of MoS2 which is a semiconductor. X-ray photoelectron spectroscopy (XPS), diffuse reflectance infrared Fourier transform spectroscopy (DRIFT-IR), and thermogravimetric analysis (TGA) provide strong evidence for the coordination of MoS2 surface sulfur atoms to the M(OAc)(2) salt. Interestingly, functionalization of 2H-MoS2 allows for its dispersion/processing in more conventional laboratory solvents.

引用

页码：2638 / 2642

页数：5

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