Preparation of titania covered multi-walled carbon nanotube thin films

Z. Németh, Endre Horváth, Arnaud Magrez, Balázs Réti, Péter Berki, László Forró, K. Hernádi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The aim of this work was to investigate the effects of relative humidity on the formation of titania layers on the surface of multi-walled carbon nanotubes under regulated conditions in a sealed system. Reactive precursor compounds such as titanium (IV) oxychloride hydrochloric acid and titanium (IV) bromide were used as precursor to cover the surface of multi-walled carbon nanotubes (MWCNTs) under solvent conditions. The mixtures of MWCNTs and titania compounds were not stirred or sonicated. The effect of relative humidity was influenced using the mixture of sulphuric acid and water in desiccators. As-prepared titan-dioxide (TiO2) layers were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), thermogravimetric analysis (TG), X-ray diffraction (XRD) and Raman spectroscopy. Our results revealed that TiO2 layers with different thicknesses can be obtained using this simple sealed system. These TiO2 covered multi-walled carbon nanotube films can be ideal candidates for different kinds of applications (e.g. sensors, virus filtration or catalysts).

Original languageEnglish
Pages (from-to)198-203
Number of pages6
JournalMaterials and Design
Volume86
DOIs
Publication statusPublished - Dec 5 2015

Fingerprint

Carbon Nanotubes
Carbon nanotubes
Titanium
Thin films
Atmospheric humidity
Titanium compounds
Hydrochloric Acid
Hydrochloric acid
Bromides
Viruses
Raman spectroscopy
Thermogravimetric analysis
Energy dispersive spectroscopy
X ray diffraction
Scanning electron microscopy
Catalysts
Acids
titanium dioxide
Water
Sensors

Keywords

  • MWCNT
  • Raman spectroscopy
  • Relative humidity
  • Sealed system
  • SEM

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Preparation of titania covered multi-walled carbon nanotube thin films. / Németh, Z.; Horváth, Endre; Magrez, Arnaud; Réti, Balázs; Berki, Péter; Forró, László; Hernádi, K.

In: Materials and Design, Vol. 86, 05.12.2015, p. 198-203.

Research output: Contribution to journalArticle

Németh, Z. ; Horváth, Endre ; Magrez, Arnaud ; Réti, Balázs ; Berki, Péter ; Forró, László ; Hernádi, K. / Preparation of titania covered multi-walled carbon nanotube thin films. In: Materials and Design. 2015 ; Vol. 86. pp. 198-203.
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