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Functional nanostructures of montmorillonite with conducting polyaniline

Published online by Cambridge University Press:  02 January 2018

Jonáš Tokarský ,
Pavlína Peikertová ,
Lenka Kulhánková ,
Kateřina Mamulová Kutláková ,
Lucie Neuwirthová ,
Vlastimil Matějka ,
Vítězslav Stýskala  and
Pavla Čapková
Jonáš Tokarský*
Affiliation:
Nanotechnology Centre, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic IT4Innovations Centre of Excellence, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Pavlína Peikertová
Affiliation:
Nanotechnology Centre, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic IT4Innovations Centre of Excellence, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Lenka Kulhánková
Affiliation:
Faculty of Metallurgy and Materials Engineering, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Kateřina Mamulová Kutláková
Affiliation:
Nanotechnology Centre, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Lucie Neuwirthová
Affiliation:
Nanotechnology Centre, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Vlastimil Matějka
Affiliation:
Nanotechnology Centre, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Vítězslav Stýskala
Affiliation:
Faculty of Electrical Engineering and Computer Science, VŠB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic
Pavla Čapková
Affiliation:
Faculty of Science, J.E. Purkyně University, České mládeže 8, 400 96 Ústí nad Labem, Czech Republic
*
*E-mail: jonas.tokarsky@vsb.cz
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Abstract

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The present work describes the effect of montmorillonite (MMT) particles on the alignment of conducting polyaniline (PANI) chains in a PANI/MMT composite. The composite was prepared both as a powder, pressed into pellets, and as thin films deposited on glass surfaces. For comparison, pure PANI was also prepared in these two forms. A combination of X-ray powder diffraction analysis and molecular modelling confirmed the successful intercalation of the PANI into theMMT, while Raman spectroscopy confirmed the presence of the conducting form of PANI (i.e. the emeraldine salt) in all samples. Scanning electron microscopy, transmission electron microscopy and atomic force microscopy were used to study the morphologies of all samples. Conductivity measurements showed that the presence of the MMT particles in the PANI/MMT composites contributes to a significant increase in the electrical conductivity in comparison with the pure PANI samples. Moreover, in the pressed pellets the presence of theMMT particles led to an extremely high electrical anisotropy. TheUV-VIS spectroscopy results showed that the PANI/MMT thin film exhibited a selective transmittance in the range 450–650 nm; therefore, the PANI/MMT thin film is not only conductive, but also suitable for use in various optical applications.

Keywords

polyanilinemontmorilloniteconductivitystructure
Type
Research Article
Information
Clay Minerals , Volume 50 , Issue 3 , August 2015 , pp. 341 - 351
Creative Commons
Creative Common License - CCCreative Common License - BY
Copyright © The Mineralogical Society of Great Britain and Ireland 2015 This is an Open Access article, distributed under the terms of the Creative Commons Attribution license. (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

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