Unique Advantages of Exfoliated 2D Nanosheets for Tailoring the Functionalities of Nanocomposites

Abstract

Hybridization with exfoliated two-dimensional (2D) nanosheets provides a very effective and powerful way not only to control the physicochemical properties of hybridized species but also to explore nanocomposites with novel functionalities. Deliberate coupling between the hybridized species is critically important in maximizing the effect of hybridization on the physicochemical properties and functionality of hybridized components. The very small thickness and extremely large surface of exfoliated 2D nanosheets render these materials ideal candidates for achieving a strong coupling with diverse guest species. This Perspective focuses on the unique characteristics of exfoliated 2D nanosheets as building blocks for designing hybrid materials. Several intriguing examples of strong interaction between exfoliated 2D nanosheets and hybridized species are summarized with an emphasis on the effective control of electronic, optical, structural, and morphological characteristics. An outlook on the future research directions is provided along with new strategies to maximize the coupling in the 2D nanosheet-based hybrid materials.

One-step Solution Processing of Ag, Au and Pd@MXene Hybrids for SERS

“…The enhancement factor can be further tuned by NP surface functionalization and grouping926. There have been numerous studies on colloidal solutions of NPs hybridized by graphene, 2D metal sulfides, and others27. Yoshimura et al .…”

Facile Synthesis of Binary Transition Metal Sulfide Tubes Derived from NiCo‐MOF‐74 for High‐Performance Supercapacitors

“…During the hydrothermal process, restacking of 2D crystallites contributed to the formation of mesopores with a uniform size of ≈5 nm and an enhancement in the specific surface area of NiCo‐S. The unique hierarchical architectures with 2D nanoflakes and porous structure provided electronic transport and ion transfer channels, increased the contact area between the electrolyte and active materials because of large specific surface area, and hence improved the electrochemical reaction kinetics …”

Water Dispersible, Positively and Negatively Charged MoS2 Nanosheets: Surface Chemistry and the Role of Surfactant Binding

“…7 MX 2 compounds therefore offer opportunities for going beyond graphene and opening up new fundamental and technological possibilities in fields like transistors, energy storage, and composites. [8][9][10] Applications would, however, require simple procedures for obtaining nanosheets of the MX 2 compounds and it is therefore not surprising that considerable attention has focused on procedures to obtain nanosheets of these materials.…”