Graphene and Other 2D Colloids: Liquid Crystals and Macroscopic Fibers

Two‐dimensional colloidal nanomaterials are running into renaissance after the enlightening researches of graphene. Macroscopic one‐dimensional fiber is an optimal ordered structural form to express the in‐plane merits of 2D nanomaterials, and the formation of liquid crystals (LCs) allows the creati...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2017-04, Vol.29 (14), p.np-n/a
Main Authors: Liu, Yingjun, Xu, Zhen, Gao, Weiwei, Cheng, Zhengdong, Gao, Chao
Format: Article
Language:English
Subjects:
2D colloids
2D layered materials
Colloids
Continuous fibers
Fibers
Graphene
liquid crystal
Liquid crystals
macroscopic fibers
Materials science
Nanomaterials
Oxides
Strategy
Vanadium pentoxide
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Summary:Two‐dimensional colloidal nanomaterials are running into renaissance after the enlightening researches of graphene. Macroscopic one‐dimensional fiber is an optimal ordered structural form to express the in‐plane merits of 2D nanomaterials, and the formation of liquid crystals (LCs) allows the creation of continuous fibers. In the correlated system from LCs to fibers, understanding their macroscopic organizing behavior and transforming them into new solid fibers is greatly significant for applications. Herein, we retrospect the history of 2D colloids and discuss about the concept of 2D nanomaterial fibers in the context of LCs, elaborating the motivation, principle and possible strategies of fabrication. Then we highlight the creation, development and typical applications of graphene fibers. Additionally, the latest advances of other 2D nanomaterial fibers are also summarized. Finally, conclusions, challenges and perspectives are provided to show great expectations of better and more fibrous materials of 2D nanomaterials. This review gives a comprehensive retrospect of the past century‐long effort about the whole development of 2D colloids, and plots a clear roadmap — “lamellar solid — LCs — macroscopic fibers — flexible devices”, which will certainly open a new era of structural‐multifunctional application for the conventional 2D colloids. 2D colloidal nanomaterials are experiencing a full‐scale renaissance after the enlightening research of graphene. The history of 2D colloidal liquid crystals is comprehensively reviewed from the first V2O5 colloid to the recently discovered graphene (oxide) and other graphenelike 2D nanomaterials. Their attractive solution‐processible properties facilitate the construction of macroscopic fibers with versatile functionalities.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201606794