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Issue 71, 2015
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Delamination of graphite in a high pressure homogenizer

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Abstract

A scalable industrial method for graphene and Few-Layer-Graphene (FLG) production by graphite delamination in N-methylpyrrolidone and water–surfactant mixtures using a high pressure homogenizer is presented. This paper is focused on processing conditions and extensive subsequent analysis of the delaminated products by a combination of analytical ultracentrifugation, UV/Vis and statistical Raman spectroscopies including co-localization with atomic force microscopy. In this way quantitative processing-structure–property correlations showing how suspension properties and processing parameters governing yield, quality and lateral dimension of the produced graphene are obtained. It is found that a high pressure homogenizer can be used to obtain sufficiently high concentrated FLG suspensions with low defect concentration.

Graphical abstract: Delamination of graphite in a high pressure homogenizer

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Article information


Submitted
09 May 2015
Accepted
23 Jun 2015
First published
23 Jun 2015

RSC Adv., 2015,5, 57328-57338
Article type
Paper
Author version available

Delamination of graphite in a high pressure homogenizer

T. J. Nacken, C. Damm, J. Walter, A. Rüger and W. Peukert, RSC Adv., 2015, 5, 57328
DOI: 10.1039/C5RA08643D

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