Oxo-Functionalized Graphene: A Versatile Precursor for Alkylated Graphene Sheets by Reductive Functionalization

Journal article
(Original article)


Publication Details

Author(s): Halbig c, Martin O, Hauke F, Eigler S, Hirsch A
Journal: Chemistry - A European Journal
Publisher: WILEY-V C H VERLAG GMBH
Publication year: 2018
Volume: 24
Journal issue: 50
Pages range: 13348-13354
ISSN: 0947-6539
eISSN: 1521-3765


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.


FAU Authors / FAU Editors

Hauke, Frank Dr.
Zentralinstitut für Neue Materialien und Prozesstechnik
Hirsch, Andreas Prof. Dr.
Lehrstuhl für Organische Chemie II
Martin, Oliver
Lehrstuhl für Organische Chemie II


External institutions
Freie Universität Berlin


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.

BibTeX: 

Last updated on 2019-10-03 at 16:10