Issue 33, 2012

Facile preparation of graphene–metal phthalocyanine hybrid material by electrolytic exfoliation

Abstract

In this article, we present a new, facile and efficient electrochemical method for the production of a stable aqueous dispersion of a graphene–metal phthalocyanine hybrid material. The material has been prepared by electrolytic exfoliation of graphite in an electrolyte containing copper phthalocyanine-3,4′,4′′,4′′′-tetrasulfonic acid tetrasodium salt (TSCuPc). Single- and few-layer graphene sheets, decorated with metal phthalocyanine molecules, are generated during the electrolysis and stably dispersed in the electrolyte with no further chemical treatment. Scanning electron/atomic force microscopic characterization shows that the TSCuPc–graphene hybrid structure has a sharp-edged particle morphology with thicknesses ranging from 2 nm to 6 nm, corresponding to 1 to 6 graphene-stacked layers and largely varied lateral dimensions from a few tens to several hundreds of nanometers. In addition, Raman/FTIR/UV-Vis spectra and X-ray diffraction reveal characteristic peaks that suggest that the TSCuPc–graphene hybrid is formed by non-covalent π–π interactions between graphene sheets and metal phthalocyanine and indicate a high quality graphene hybrid structure that can potentially be used in practical applications.

Graphical abstract: Facile preparation of graphene–metal phthalocyanine hybrid material by electrolytic exfoliation

Article information

Article type
Paper
Submitted
25 Apr 2012
Accepted
29 Jun 2012
First published
04 Jul 2012

J. Mater. Chem., 2012,22, 17094-17099

Facile preparation of graphene–metal phthalocyanine hybrid material by electrolytic exfoliation

J. P. Mensing, T. Kerdcharoen, C. Sriprachuabwong, A. Wisitsoraat, D. Phokharatkul, T. Lomas and A. Tuantranont, J. Mater. Chem., 2012, 22, 17094 DOI: 10.1039/C2JM32588H

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