Nitrogen-doped sulphonated 3-dimensional holey graphene nanoarchitecture for selective oxidation of ethylbenzene

Nitrogen-doped sulphonated 3-dimensional holey graphene nanoarchitecture for selective oxidation... Herein, we report a facile and novel strategy for the synthesis of 3-dimensional holey graphene nanoarchitecture, which is appropriately functionalized with nitrogen and sulfur via hydrothermal-assisted chemical etching of graphene oxide using ammonium persulfate. The chemical functionalization of the material was proved from XPS and FTIR spectral analyses. Sulfur exists as sulfonic acid group, whereas nitrogen got doped into the graphene network as revealed from the XPS analysis. The 3-dimensional morphology as well as porous nature of the developed material was confirmed from SEM and TEM images, respectively. Raman spectral analysis indicated the defective nature of the holey graphene as expected. Both N doping and sulfonation could enhance the utility of holey graphene as a carbocatalyst when compared to graphene oxide or reduced graphene oxide. The prepared material showed high catalytic efficiency towards the selective oxidation of ethylbenzene to acetophenone. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

Nitrogen-doped sulphonated 3-dimensional holey graphene nanoarchitecture for selective oxidation of ethylbenzene

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
D.O.I.
10.1007/s10853-018-2501-3
Publisher site
See Article on Publisher Site

Abstract

Herein, we report a facile and novel strategy for the synthesis of 3-dimensional holey graphene nanoarchitecture, which is appropriately functionalized with nitrogen and sulfur via hydrothermal-assisted chemical etching of graphene oxide using ammonium persulfate. The chemical functionalization of the material was proved from XPS and FTIR spectral analyses. Sulfur exists as sulfonic acid group, whereas nitrogen got doped into the graphene network as revealed from the XPS analysis. The 3-dimensional morphology as well as porous nature of the developed material was confirmed from SEM and TEM images, respectively. Raman spectral analysis indicated the defective nature of the holey graphene as expected. Both N doping and sulfonation could enhance the utility of holey graphene as a carbocatalyst when compared to graphene oxide or reduced graphene oxide. The prepared material showed high catalytic efficiency towards the selective oxidation of ethylbenzene to acetophenone.

Journal

Journal of Materials ScienceSpringer Journals

Published: May 31, 2018

References

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