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Issue 33, 2019
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Growth of close-packed crystalline polypyrrole on graphene oxide via in situ polymerization of two-monomer-connected precursors

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Abstract

Synthesis of a two-dimensional (2D) highly crystalline composite, P(Py:BPDSA:Py)-GO, from the growth of a close-packed polymer crystal, P(Py:BPDSA:Py), on graphene oxide (GO) sheets via in situ polymerization of two-monomer-connected precursors (TMCPs, Py:BPDSA:Py), in which two pyrrole (Py) molecules are linked through a connector (4,4′-biphenyldisulfonic acid) (BPDSA), is reported. When the TMCP is polymerized on GO, it leads to an exceptionally ordered structure determined by X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) studies. X-ray crystallography of the composite shows crystalline peaks with d spacings in the [100] direction. Transmission electron microscopy (TEM) analysis indicates that the composite has a face-centered cubic (FCC) crystal structure. Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) show that this composite with a well-defined nanostructure was successfully synthesized. Nitrogen adsorption–desorption isotherms show that this composite, P(Py:BPDSA:Py)-GO, has an improved specific surface area (71 m2 g−1) compared to that of P(Py:BPDSA:Py) (3.1 m2 g−1). The electrochemical properties of the composite studied by cyclic voltammetry indicates a specific capacitance of 480 F g−1 without an additional conducting material such as carbon black, suggesting its use as a pseudocapacitor.

Graphical abstract: Growth of close-packed crystalline polypyrrole on graphene oxide via in situ polymerization of two-monomer-connected precursors

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Publication details

The article was received on 26 Jun 2019, accepted on 05 Aug 2019 and first published on 07 Aug 2019


Article type: Paper
DOI: 10.1039/C9NR05398K
Nanoscale, 2019,11, 15641-15646

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    Growth of close-packed crystalline polypyrrole on graphene oxide via in situ polymerization of two-monomer-connected precursors

    W. Kim, H. Lee, Z. Ahmad, S. J. Yoo, Y. Kim, S. Kumar, M. Changez, J. Lee and J. Lee, Nanoscale, 2019, 11, 15641
    DOI: 10.1039/C9NR05398K

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