Reversible Storage of Molecular Hydrogen by Sorption into Multilayered TiO2 Nanotubes

Dmitry V Bavykin, Alexei A Lapkin, Pawel K Plucinski, Jens M Friedrich, Frank C Walsh

Research output: Contribution to journalArticle

220 Citations (Scopus)

Abstract

The sorption of hydrogen between the layers of the multilayered wall of nanotubular TiO2 was studied in the temp. range of -195 to 200 DegC and at pressures of 0 to 6 bar. Hydrogen can intercalate between layers in the walls of TiO2 nanotubes forming host-guest compds. TiO2.xH2, where x ? 1.5 and decreases at higher temps. The rate of hydrogen incorporation increases with temp. and the characteristic time for hydrogen sorption in TiO2 nanotubes is several hours at 100 DegC. The rate of intercalate formation is limited by the diffusion of mol. hydrogen inside the multilayered walls of the TiO2 nanotube. 1H NMR-MAS and XRD data confirm the incorporation of hydrogen between the layers in the walls of TiO2 nanotubes. The nature and possible applications of the obsd. intercalates are considered. [on SciFinder (R)]
Original languageEnglish
Pages (from-to)19422-19427
Number of pages6
JournalJournal of Physical Chemistry B
Volume109
Issue number41
Publication statusPublished - 2005

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Nanotubes
Sorption
Hydrogen
Nuclear magnetic resonance

Keywords

  • adsorption physisorption hydrogen multilayered wall titania nanotube
  • Adsorption (isotherm
  • Nanotubes
  • adsorption of hydrogen on multilayered wall of titania nanotube)
  • Physisorption (adsorption of hydrogen on multilayered wall of titania nanotube)

Cite this

Bavykin, D. V., Lapkin, A. A., Plucinski, P. K., Friedrich, J. M., & Walsh, F. C. (2005). Reversible Storage of Molecular Hydrogen by Sorption into Multilayered TiO2 Nanotubes. Journal of Physical Chemistry B, 109(41), 19422-19427.

Reversible Storage of Molecular Hydrogen by Sorption into Multilayered TiO2 Nanotubes. / Bavykin, Dmitry V; Lapkin, Alexei A; Plucinski, Pawel K; Friedrich, Jens M; Walsh, Frank C.

In: Journal of Physical Chemistry B, Vol. 109, No. 41, 2005, p. 19422-19427.

Research output: Contribution to journalArticle

Bavykin, DV, Lapkin, AA, Plucinski, PK, Friedrich, JM & Walsh, FC 2005, 'Reversible Storage of Molecular Hydrogen by Sorption into Multilayered TiO2 Nanotubes', Journal of Physical Chemistry B, vol. 109, no. 41, pp. 19422-19427.
Bavykin, Dmitry V ; Lapkin, Alexei A ; Plucinski, Pawel K ; Friedrich, Jens M ; Walsh, Frank C. / Reversible Storage of Molecular Hydrogen by Sorption into Multilayered TiO2 Nanotubes. In: Journal of Physical Chemistry B. 2005 ; Vol. 109, No. 41. pp. 19422-19427.
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AU - Walsh, Frank C

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AB - The sorption of hydrogen between the layers of the multilayered wall of nanotubular TiO2 was studied in the temp. range of -195 to 200 DegC and at pressures of 0 to 6 bar. Hydrogen can intercalate between layers in the walls of TiO2 nanotubes forming host-guest compds. TiO2.xH2, where x ? 1.5 and decreases at higher temps. The rate of hydrogen incorporation increases with temp. and the characteristic time for hydrogen sorption in TiO2 nanotubes is several hours at 100 DegC. The rate of intercalate formation is limited by the diffusion of mol. hydrogen inside the multilayered walls of the TiO2 nanotube. 1H NMR-MAS and XRD data confirm the incorporation of hydrogen between the layers in the walls of TiO2 nanotubes. The nature and possible applications of the obsd. intercalates are considered. [on SciFinder (R)]

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KW - Physisorption (adsorption of hydrogen on multilayered wall of titania nanotube)

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