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Chemical Route to Twisted Graphene, Graphene Oxide and Boron Nitride
Author(s) -
Saraswat Aditi,
Pramoda K.,
Debnath Koyendrila,
Servottam Swaraj,
Waghmare Umesh V.,
Rao C. N. R.
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000277
Subject(s) - graphene , materials science , covalent bond , boron nitride , oxide , oxalic acid , boron , graphene oxide paper , linker , boron oxide , nanotechnology , crystallography , inorganic chemistry , chemistry , organic chemistry , computer science , metallurgy , operating system
The recently discovered twisted graphene has attracted considerable interest. A simple chemical route was found to prepare twisted graphene by covalently linking layers of exfoliated graphene containing surface carboxyl groups with an amine‐containing linker ( trans ‐1,4‐diaminocyclohexane). The twisted graphene shows the expected selected area electron diffraction pattern with sets of diffraction spots out with different angular spacings, unlike graphene, which shows a hexagonal pattern. Twisted multilayer graphene oxide could be prepared by the above procedure. Twisted boron nitride, prepared by cross‐linking layers of boron nitride (BN) containing surface amino groups with oxalic acid linker, exhibited a diffraction pattern comparable to that of twisted graphene. First‐principles DFT calculations threw light on the structures and the nature of interactions associated with twisted graphene/BN obtained by covalent linking of layers.