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Reversible storage of molecular hydrogen by sorption into multilayered TiO2 nanotubes

Bavykin, Dmitry V., Lapkin, Alexei A., Plucinski, Pawel K., Friedrich, Jens M. and Walsh, Frank C. (2005) Reversible storage of molecular hydrogen by sorption into multilayered TiO2 nanotubes Journal of Physical Chemistry B, 109, (41), pp. 19422-19427. (doi:10.1021/jp0536394).

Record type: Article


The sorption of hydrogen between the layers of the multilayered wall of nanotubular TiO2 was studied in the temperature range of -195 to 200 °C and at pressures of 0 to 6 bar. Hydrogen can intercalate between layers in the walls of TiO2 nanotubes forming host-guest compounds TiO2·xH2, where x ? 1.5 and decreases at higher temperatures. The rate of hydrogen incorporation increases with temperature and the characteristic time for hydrogen sorption in TiO2 nanotubes is several hours at 100 °C. The rate of intercalate formation is limited by the diffusion of molecular 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 observed intercalates are considered.

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Published date: 20 October 2005
Additional Information: First demonstration of reversible hydrogen intercalation inside the multilayered walls of titanates nanotubes.


Local EPrints ID: 23574
ISSN: 1089-5647
PURE UUID: 57519c8a-1b61-460e-8616-a1bf39844198

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Date deposited: 20 Mar 2006
Last modified: 17 Jul 2017 16:17

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Author: Alexei A. Lapkin
Author: Pawel K. Plucinski
Author: Jens M. Friedrich
Author: Frank C. Walsh

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