Non-Covalent Synthesis as a New Strategy for Generating Supramolecular Layered Heterostructures

Abstract

Noncovalent synthesis of stable heterostructures (graphene-BN, MoS2-graphene) of layered materials has been accomplished by a ternary host–guest complex as a heterocomplementary supramolecular motif. Besides being reversible, this supramolecular strategy to generate heterostructures may find uses in many situations.

Layered Nanocomposites of Polymer-Functionalized Reduced Graphene Oxide and Borocarbonitride with MoS2 and MoSe2 and Their Hydrogen Evolution Reaction Activity

“…6−8 Interestingly, nanocomposites of 2D materials have also been prepared by noncovalent means. 9,10 Sasaki et al 11,12 have recently synthesized superlattice-like structures of graphene-MoO 3 and graphene-MoS 2 by solutionphase flocculation of unilamellar sheets. Following Sasaki et al, the procedure employed for preparing the graphene−MoS 2 superlattice involves the solution-phase assembly of positively charged graphene layers with negatively charged MoS 2 sheets.…”

“…van der Waals structures formed by 2D nanosheets of graphene and other 2D materials have been widely investigated. − These materials exhibit interesting and useful properties. Recently, covalent linking of 2D nanosheets has been employed to generate a variety of materials possessing important properties. − Covalently linked 2D nanocomposites involving graphene, MoS 2 , C 3 N 4 , and borocarbonitride (BC 6 N, shown as BCN for simplicity) exhibit good photocatalytic as well as electrocatalytic hydrogen evolution reaction (HER) activity. − Interestingly, nanocomposites of 2D materials have also been prepared by noncovalent means. , Sasaki et al , have recently synthesized superlattice-like structures of graphene-MoO 3 and graphene-MoS 2 by solution-phase flocculation of unilamellar sheets. Following Sasaki et al, the procedure employed for preparing the graphene–MoS 2 superlattice involves the solution-phase assembly of positively charged graphene layers with negatively charged MoS 2 sheets.…”

Simultaneous assembly of van der Waals heterostructures into multiple nanodevices

“…The exfoliation of bulk lamellar materials such as graphite, boron nitride, black phosphorous and other transition metal dichalcogenides down to the nanoscale led to the isolation of individual two-dimensional single layers and to the discovery of their unique electronic and optoelectronic properties 1,2 . Taking advantage of the van der Waals interlayer interaction in this family of materials, research in this field turned rapidly to the design and fabrication of tailored stacked heterostructures [3][4][5] . The main interest of such constructions lies in combining or modulating the properties of monolayers from different materials (doping, superconductivity, magnetism, light emission 4, 6-10 among others) and exploiting their intrinsic thickness confinement to make new and ultrathin (thus potentially flexible) electronic devices.…”

Cucurbit[8]uril-Derived Graphene Hydrogels

“…18,19 Kumar and colleagues recently reported on CB [8]-mediated complexation of GO with other 2D materials via host-guest complexation. 20 The combination of GO and CB [7] has also been used for sensing applications. 21,22 Nevertheless, no studies to date have explored the utility of cucurbiturils in GRbased supramolecular hydrogels.…”