Study of the growth of CeO22 nanoparticles onto titanate nanotubes

Thalles M.F. Marques, Odair P. Ferreira, Jose A.P. Da Costa, Kazunori Fujisawa, Mauricio Terrones, Bartolomeu C. Viana

Research output: Contribution to journalArticle

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Abstract

We report the study of the growth of CeO2 nanoparticles on the external walls and Ce4+ intercalation within the titanate nanotubes. The materials were fully characterized by multiple techniques, such as: Raman spectroscopy, infrared spectroscopy (FTIR), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The ion exchange processes in the titanate nanotubes were carried out using different concentrations of Ce4+ in aqueous solution. Our results indicate that the growth of CeO2 nanoparticles grown mediated by the hydrolysis in the colloidal species of Ce and the attachment onto the titanate nanotubes happened and get it strongly anchored to the titanate nanotube surface by a simple electrostatic interaction between the nanoparticles and titanate nanotubes, which can explain the small size and even distribution of nanoparticles on titanate supports. It was demonstrated that it is possible to control the amount and size of CeO2 nanoparticles onto the nanotube surface, the species of the Ce ions intercalated between the layers of titanate nanotubes, and the materials could be tuned for using in specific catalysis in according with the amount of CeO2 nanoparticles, their oxygen vacancies/defects and the types of Ce species (Ce4+ or Ce3+) present into the nanotubes.

Original languageEnglish (US)
Article number7625
Pages (from-to)213-220
Number of pages8
JournalJournal of Physics and Chemistry of Solids
Volume87
DOIs
StatePublished - Aug 29 2015

Fingerprint

Nanotubes
nanotubes
Nanoparticles
nanoparticles
Oxygen vacancies
Intercalation
Coulomb interactions
intercalation
Catalysis
catalysis
attachment
Raman spectroscopy
hydrolysis
Energy dispersive spectroscopy
Infrared spectroscopy
Hydrolysis
Ion exchange
ions
x rays
X ray photoelectron spectroscopy

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Marques, T. M. F., Ferreira, O. P., Da Costa, J. A. P., Fujisawa, K., Terrones, M., & Viana, B. C. (2015). Study of the growth of CeO22 nanoparticles onto titanate nanotubes. Journal of Physics and Chemistry of Solids, 87, 213-220. [7625]. https://doi.org/10.1016/j.jpcs.2015.08.022
Marques, Thalles M.F. ; Ferreira, Odair P. ; Da Costa, Jose A.P. ; Fujisawa, Kazunori ; Terrones, Mauricio ; Viana, Bartolomeu C. / Study of the growth of CeO22 nanoparticles onto titanate nanotubes. In: Journal of Physics and Chemistry of Solids. 2015 ; Vol. 87. pp. 213-220.
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Study of the growth of CeO22 nanoparticles onto titanate nanotubes. / Marques, Thalles M.F.; Ferreira, Odair P.; Da Costa, Jose A.P.; Fujisawa, Kazunori; Terrones, Mauricio; Viana, Bartolomeu C.

In: Journal of Physics and Chemistry of Solids, Vol. 87, 7625, 29.08.2015, p. 213-220.

Research output: Contribution to journalArticle

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