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The solvent-free mechanochemical synthesis of mildly oxidized graphene oxide and its application as a novel conductive surfactant

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Abstract

The preparation of single/few layer graphene or graphene oxide on a large scale is still a challenge. Here, an eco-friendly and uncomplicated approach for the preparation of mildly oxidized graphene oxide (MOGO) has been developed by the solid-state mechanochemical ball-milling of graphite powder in the presence of a solid oxidant potassium peroxymonosulfate (Oxone). XRD, XPS, Raman, AFM and TEM studies revealed that the MOGO was of the size of micrometers and mainly had 3 layers with a high C/O ratio. The as-prepared MOGO showed excellent dispersion in various solvents with high stability. Interestingly, the MOGO can be used as a two-dimensional conductive surfactant to stabilize silver nanoparticles in an aqueous suspension. Therefore, MOGO can be widely used to disperse and stabilize conductive nanoparticles in a fluid medium.

Graphical abstract: The solvent-free mechanochemical synthesis of mildly oxidized graphene oxide and its application as a novel conductive surfactant

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Publication details

The article was received on 30 Jan 2019, accepted on 03 Apr 2019 and first published on 03 Apr 2019


Article type: Paper
DOI: 10.1039/C9NJ00529C
Citation: New J. Chem., 2019, Advance Article

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    The solvent-free mechanochemical synthesis of mildly oxidized graphene oxide and its application as a novel conductive surfactant

    J. Chen, W. Chen, D. Song, B. Lai, Y. Sheng and L. Yan, New J. Chem., 2019, Advance Article , DOI: 10.1039/C9NJ00529C

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