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Carbon nanotube-layered double hydroxide nanocomposites

Viktor Tóth, Mónika Sipiczki, Valéria Bugris, Ákos Kukovecz, Zoltán Kónya, Pál Sipos, and István Pálinkó

Department of Organic Chemistry, University of Szeged, Dómtér 7, H-6270, Szeged, Hungary

 

E-mail: palinko@chem.u-szeged.hu

Abstract: Preparation of multiwalled carbon nanotube-layered double hydroxide (MWCNT-LDH) nano-composites by (i) the co-precipitation of LDH components and pristine or surface-treated MWCNT or (ii) the delamination of LDH and application of the layer-by-layer technique has been attempted. For MWCNT, two types of surface treatment were used, either the surface was hydroxylated and deprotonated or wrapped in a tenside (dodecylbenzenesulfonate, DBS). LDH was delaminated by N,N-dimethylformamide. The obtained materials were characterized by X-ray diffractometry (XRD), and by scanning and transmission electron microscopies (SEM and TEM). Element distribution was mapped with help of the X-ray energy dispersive spectroscopy (XEDS) available as an extension of the scanning electron microscope. MWCNT could not be sandwiched between the layers of LDH by any of the methods employed; however, tenside-treated bundles of MWCNT could be wrapped in LDH thus forming a nanocomposite.

Keywords: CaFe-layered double hydroxide – multiwalled carbon nanotube – composite – coating – sandwich-like structure

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-013-0499-1

 

Chemical Papers 68 (5) 650–655 (2014)

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