Abstract
Single and few-layers MoS2 were uniformly grown on the surface of chemically reduced graphene oxide (r-GO) via a facile liquid phase approach. The method is based on a simple functionalization of r-GO with oleyl amine which seem to affect significantly the MoS2 way of growth. Scanning transmission electron microscopy (STEM) and Atomic Force Microscopy (AFM) analysis reveal the presence of single-layer MoS2 on the surface of a few-layers r-GO. XPS and Raman spectroscopies were used for in-depth structural characterization. Furthermore, we have successfully applied the method to synthesize MoS2 nanocomposites with multiwall carbon nanotubes (CN) and carbon nanofibers (CNF). The results demonstrate clearly the selective MoS2 growth on both carbon-based supports.
Highlights
Due to their unique electronic properties, atomically-thin two-dimensional (2D) materials such as graphene (Geim and Novoselov, 2007), hexagonal boron nitride (h-BN) (Dean et al, 2010) and transition-metal dichalcogenide (Radisavljevic et al, 2011; Lembke and Kis, 2012; Wang et al, 2012) have been attracting increasing attention
The synthetic procedure for the decoration of reduced graphene oxide (r-GO) with MoS2 is illustrated in Scheme 1
Oleyl-amine-functionalized exfoliated r-GO sheets were dispersed in oleyl amine, providing nucleation centers for the growth of MoS2
Summary
Due to their unique electronic properties, atomically-thin two-dimensional (2D) materials such as graphene (Geim and Novoselov, 2007), hexagonal boron nitride (h-BN) (Dean et al, 2010) and transition-metal dichalcogenide (Radisavljevic et al, 2011; Lembke and Kis, 2012; Wang et al, 2012) have been attracting increasing attention. The method is based on the thermolytic decomposition of (NH4)2MoS4 by oleyl amine at 350◦C in the presence of chemically-exfoliated reduced graphene oxide (r-GO). The MoS2/RGO composites are surface functionalized efficiently by oleyl amine molecules, making the material dispersible in non-polar solvents such as toluene and hexane.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
