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Halogen Functionalization in the 2D Material Flatland: Strategies, Properties, and Applications
Author(s) -
Tang Xian,
Fan Touwen,
Wang Cong,
Zhang Han
Publication year - 2021
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202005640
Subject(s) - halogenation , halogen , electronegativity , surface modification , nanotechnology , halogen bond , materials science , graphene , organic chemistry , chemistry , combinatorial chemistry , alkyl
Abstract Given the electronegativity and bonding environment of halogen elements, halogenation (i.e., fluorination, chlorination, bromination, and iodination) serves as a versatile strategy for chemical modifications of materials. The combination of halogens and 2D materials has triggered extensive interests since the first report on graphene fluorination in 2008. Subsequently, scholars consistently conduct pre‐, in‐process, or posthalogenation modifications of emerging 2D materials to achieve desired properties and broad device applications. They also continuously explore the role of halogens in 2D material functionalization. The multiple advantages introduced by halogen decoration make 2D materials outstanding from each subclass. In this review, an overall retrospect is provided on the research advances in the area of 2D material halogenation, including experimental halogenation strategies, halogen‐triggered novel physics and properties, and advanced applications across the studied objects. Future research directions in this area are also proposed.

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