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A Straightforward Approach to Multifunctional Graphene
Author(s) -
Lucherelli Matteo Andrea,
Raya Jésus,
Edelthalhammer Konstantin F.,
Hauke Frank,
Hirsch Andreas,
Abellán Gonzalo,
Bianco Alberto
Publication year - 2019
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.201903165
Subject(s) - graphene , x ray photoelectron spectroscopy , raman spectroscopy , magic angle spinning , intercalation (chemistry) , thermogravimetric analysis , covalent bond , materials science , graphite , nanotechnology , phthalimide , mass spectrometry , chemistry , combinatorial chemistry , nuclear magnetic resonance spectroscopy , chemical engineering , organic chemistry , physics , optics , engineering , chromatography
Graphene has been covalently functionalized through a one‐pot reductive pathway using graphite intercalation compounds (GICs), in particular KC 8 , with three different orthogonally protected derivatives of 4‐aminobenzylamine. This novel multifunctional platform exhibits excellent bulk functionalization homogeneity (H bulk ) and degree of addition while preserving the chemical functionalities of the organic addends through different protecting groups, namely: tert ‐butyloxycarbonyl (Boc), benzyloxycarbonyl (Cbz) and phthalimide (Pht). We have employed (temperature‐dependent) statistical Raman spectroscopy (SRS), X‐ray photoelectron spectroscopy (XPS), magic angle spinning solid state 13 C NMR (MAS‐NMR), and a characterization tool consisting of thermogravimetric analysis coupled with gas chromatography and mass spectrometry (TG‐GC‐MS) to unambiguously demonstrate the covalent binding and the chemical nature of the different molecular linkers. This work paves the way for the development of smart graphene‐based materials of great interest in biomedicine or electronics, to name a few, and will serve as a guide in the design of new 2D multifunctional materials.