Kinetic 2D Crystals via Topochemical Approach

• Published in: Advanced materials (Weinheim) 2021-11, Vol.33 (47), p.e2006043-n/a
• Main Authors: Bae, Jihong, Kim, Minjung, Kang, Hyeonsoo, Kim, Taeyoung, Choi, Hong, Kim, Bokyeong, Do, Hyung Wan, Shim, Wooyoung
• Format: Article
• Language: English
• Subjects: Chemical properties; Graphene; Layered materials; Material properties; Materials science; metastable layered materials; soft chemical 2D synthesis; Synthesis; topochemical deintercalation; Two dimensional materials
• ISSN: 0935-9648; 1521-4095
• DOI: 10.1002/adma.202006043

The designing of novel materials is a fascinating and innovative pathway in materials science. Particularly, novel layered compounds have tremendous influence in various research fields. Advanced fundamental studies covering various aspects, including reactants and synthetic methods, are required to obtain novel layered materials with unique physical and chemical properties. Among the promising synthetic techniques, topochemical approaches have afforded the platform for widening the extent of novel 2D materials. Notably, the synthesis of binary layered materials is considered as a major scientific breakthrough after the synthesis of graphene as they exhibit a wide spectrum of material properties with varied potential applicability. In this review, a comprehensive overview of the progress in the development of metastable layered compounds is presented. The various metastable layered compounds synthesized from layered ternary bulk materials through topochemical approaches are listed, followed by the descriptions of their mechanisms, structural analyses, characterizations, and potential applications. Finally, an essential research direction concerning the synthesis of new materials is indicated, wherein the possible application of topochemical approaches in unprecedented areas is explored. The increasing interest in novel materials requires in‐depth research on its mechanisms, structural analyses, characterization, and potential applications. The comprehensive progress of novel layered compounds synthesized via topochemical approaches is analyzed. Along with its current status from the existing literature, future research directions to address their challenges and unveil their potential are also discussed.