Oxo-Functionalized Graphene: A Versatile Precursor for Alkylated Graphene Sheets by Reductive Functionalization
Halbig c, Martin O, Hauke F, Eigler S, Hirsch A (2018)
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2018
Journal
Publisher: WILEY-V C H VERLAG GMBH
Book Volume: 24
Pages Range: 13348-13354
Journal Issue: 50
Abstract
Controlled covalent functionalization of graphene remains a challenging task owing to the heterogeneous nature of materials. Functionalization approaches for graphene either lack in quantifying the degree of functionalization or they do not discriminate between covalent and non-covalent functionalization. Here, graphite is oxidized and exfoliated in a three-step procedure and subsequently reduced and functionalized by hexylation. Although Raman spectroscopy is powerful to determine the degree of in-plane lattice defects (theta(LD)) and functionalization (theta(FD)), the method fails at detecting introduced hexyl groups at a concentration of about 0.03%, next to the pre-existing in-plane lattice defects of 0.7%. However, sensitive thermogravimetric analysis coupled with gas chromatography and mass spectrometry (TGA-GC/MS) can prove the hexylation reaction. The efficiency of functionalization is comparable to reductive functionalization of pristine chemical vapor deposition (CVD)-graphene and bulk graphite.
Authors with CRIS profile
Oliver Martin
Lehrstuhl für Organische Chemie II
Frank Hauke
Zentralinstitut für Neue Materialien und Prozesstechnik
Andreas Hirsch
Lehrstuhl für Organische Chemie II
Involved external institutions
Germany (DE)How to cite
APA:
Halbig, c., Martin, O., Hauke, F., Eigler, S., & Hirsch, A. (2018). Oxo-Functionalized Graphene: A Versatile Precursor for Alkylated Graphene Sheets by Reductive Functionalization. Chemistry - A European Journal, 24(50), 13348-13354. https://dx.doi.org/10.1002/chem.201802500
MLA:
Halbig, christina, et al. "Oxo-Functionalized Graphene: A Versatile Precursor for Alkylated Graphene Sheets by Reductive Functionalization." Chemistry - A European Journal 24.50 (2018): 13348-13354.
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