Issue 31, 2020

Intercalation and exfoliation chemistries of transition metal dichalcogenides

Abstract

Large-scale preparation of single-layer transition metal dichalcogenides (TMDs) is significant due to their potential applications, such as catalysis, electronics, energy storage and conversion. In order to meet the application requirements, TMD nanosheets need to be mass-produced with a high yield, uniform size, and good quality. Several strategies have been developed to prepare 2D TMDs, such as mechanical exfoliation, chemical vapor deposition, and liquid exfoliation. Liquid exfoliation, which can be categorized into direct exfoliation and intercalation-based exfoliation, is a promising method since it can be employed for mass production, structural modification, and fabrication of 2D TMD composites. Intercalation can expand the interlayer spacing, weaken the van der Waals force, and change the structure of the host materials. Exfoliation can break the van der Waals force between the adjacent layers by exerting certain external strengths. However, the detailed mechanisms of both intercalation and exfoliation are not clear; this limits their potential applications. This review aims to provide a comprehensive summary about the intercalation and exfoliation processes of layered materials as well as their properties and applications. Our main attention is the underlying reaction mechanism during chemical or electrochemical intercalation in addition to the exfoliation process. The applications of 2D TMDs fabricated from exfoliation are also introduced in this review. In the last part, we provide some perspectives on the fundamental research and practical applications of TMDs.

Graphical abstract: Intercalation and exfoliation chemistries of transition metal dichalcogenides

Article information

Article type
Review Article
Submitted
04 Apr 2020
Accepted
19 May 2020
First published
19 May 2020

J. Mater. Chem. A, 2020,8, 15417-15444

Intercalation and exfoliation chemistries of transition metal dichalcogenides

Q. Zhang, L. Mei, X. Cao, Y. Tang and Z. Zeng, J. Mater. Chem. A, 2020, 8, 15417 DOI: 10.1039/D0TA03727C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements