Colloidal 2D nanosheets of MoS 2 and other transition metal dichalcogenides through liquid-phase exfoliation

Grayfer, Ekaterina D.; Козлова, М. Н.; Fedorov, V. E.

doi:10.1016/j.cis.2017.04.014

Cited by 163 publications

(101 citation statements)

References 228 publications

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“…As understood by simulation with DFT, there is a stronger binding affinity of oleylalcohol or oleylamine on WSe 2 edges, and thus WSe 2 nanosheets may grow perpendicularly to form multilayer nanosheets. [79] In McDonald's work, it was found that MoS 2 facilitated the oxidation of thiol ligands into disulfide ligands accompanied with the corresponding change from surface coordination of thiol to surface physisorption of disulfide on MoS 2 nanosheets.…”

Section: Surface Modification With Organic Moleculesmentioning

confidence: 99%

Functionalized Hybridization of 2D Nanomaterials

Guan

Han

2019

Advanced Science

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The discovery of graphene and subsequent verification of its unique properties have aroused great research interest to exploit diversified graphene‐analogous 2D nanomaterials with fascinating physicochemical properties. Through either physical or chemical doping, linkage, adsorption, and hybridization with other functional species into or onto them, more novel/improved properties are readily created to extend/expand their functionalities and further achieve great performance. Here, various functionalized hybridizations by using different types of 2D nanomaterials are overviewed systematically with emphasis on their interaction formats (e.g., in‐plane or inter plane), synergistic properties, and enhanced applications. As the most intensely investigated 2D materials in the post‐graphene era, transition metal dichalcogenide nanosheets are comprehensively investigated through their element doping, physical/chemical functionalization, and nanohybridization. Meanwhile, representative hybrids with more types of nanosheets are also presented to understand their unique surface structures and address the special requirements for better applications. More excitingly, the van der Waals heterostructures of diverse 2D materials are specifically summarized to add more functionality or flexibility into 2D material systems. Finally, the current research status and faced challenges are discussed properly and several perspectives are elaborately given to accelerate the rational fabrication of varied and talented 2D hybrids.

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Section: Surface Modification With Organic Moleculesmentioning

confidence: 99%

Functionalized Hybridization of 2D Nanomaterials

Guan

Han

2019

Advanced Science

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“…Such a limitation was overcome by using diazonium salts or organohalides, as these organic molecules were proved to covalently modify the TMC ultrathin layers through a nucleophilic attach from the chalcogenide to the molecule . Alternatively, an intermediate situation has been found by using coordination interactions between the chalcogenide of the 2D layer and a metallic salt, or by using a halogen dative atom of a molecule to coordinate the metal of the TMC when a vacancy is present . Several reviews can be found in literature that face detailed description of the chemical functionalization of TMCs, and the underlying interactions involved in these processes …”

Section: Hybrid Interfaces Using 2d Materialsmentioning

confidence: 99%

Hybrid Interfaces in Molecular Spintronics

Forment‐Aliaga

Coronado

2018

The Chemical Record

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Molecular/inorganic multilayer heterostructures are gaining attention in molecular electronics and more recently in new generation spintronic devices. The intrinsic properties of molecular materials as low cost, tuneability, or long spin lifetimes were the original reasons behind their implementation. However, the non-innocent role played by these hybrid interfaces is a determinant factor in the device performance. In this account we will give an overview about different types of hybrid molecular system/ferromagnet interfaces, which can be of direct application in molecular spintronics. This includes the insertion of a 2D material in between the molecular system and the ferromagnet. As perspective, new hybrid interfaces able to tune the spin properties under an external stimulus, are proposed. These smart interfaces, based on switchable magnetic molecules or flexible MOFs, can open the way to new multifunctional spintronic devices able to couple the spin with a second property.

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“…Due to the specific layered structure and weak van der Waals forces between the layers, host materials can be intercalated by molecules or ions facilitated by sonication or other appropriate means . Among all the intercalatable materials, alkali metals, such as lithium, sodium, and potassium, have been intensively explored in the intercalation of bulk TMDC crystals . In a typical Li‐intercalation experiment, bulk TMDC powders are mixed with n ‐butyllithium in hexane under an inert gas (i.e., nitrogen) atmosphere, and subsequent exfoliation in water is realized by (ultra)sonication treatment ( Figure ).…”

Section: Solution‐based Synthesis Of Tmdcsmentioning

confidence: 99%

“…Nevertheless, a study regarding the toxicity assessment of MoS 2 nanomaterials has revealed that n ‐butyllithium‐ and tert ‐butyllithium‐exfoliated MoS 2 nanosheets are more cytotoxic than methyllithium‐exfoliated MoS 2 , which further gives us a hint to choose the best intercalating agent for application in biosystems. Apart from alkali metals, intercalation can also be implemented using small molecules . Rajamathi and co‐workers once replaced lithium‐intercalated Li x MS 2 (M = Mo and W) with NH 3 /NH 4 + , and, assisted with subsequent sonication, obtained stable MS 2 dispersions .…”

Section: Solution‐based Synthesis Of Tmdcsmentioning

confidence: 99%

Design, Synthesis, and Surface Modification of Materials Based on Transition‐Metal Dichalcogenides for Biomedical Applications

et al. 2017

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With the rapid development of nanotechnology, the emerging transition‐metal dichalcogenides (TMDCs) have become one of the most promising inorganic nanomaterials for medical applications due to their distinctive structures and properties. TMDCs with different sizes and morphologies exhibit unique structural advantages, as well as versatile properties. However, concerning their practicability for biomedical applications, routes toward their synthesis and chemical/physical functionalization for biosystem applications must be identified. Herein, recent advances in the design, synthesis, and surface modification of TMDC‐based nanomaterials specific for biomedical applications are reviewed. First, the basic consideration regarding how to fabricate biocompatible TMDCs efficiently for biomedical use is discussed. Solution‐based synthesis methods for 2D TMDCs, as well as TMDC‐based nanocomposites are then summarized. In addition, general strategies applied for surface functionalization of TMDCs are also discussed. Finally, current challenges and future perspectives for these promising materials in biosystem applications are outlined.

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Colloidal 2D nanosheets of MoS 2 and other transition metal dichalcogenides through liquid-phase exfoliation

Cited by 163 publications

References 228 publications

Functionalized Hybridization of 2D Nanomaterials

Functionalized Hybridization of 2D Nanomaterials

Hybrid Interfaces in Molecular Spintronics

Design, Synthesis, and Surface Modification of Materials Based on Transition‐Metal Dichalcogenides for Biomedical Applications

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