Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-24T08:48:57.854Z Has data issue: false hasContentIssue false
  • English
  • Français

An in-situ X-ray Diffraction Study of the Desorption of TiCl3-doped Sodium Alanate

Published online by Cambridge University Press:  01 February 2011

Scott A. Speakman ,
Joachim H. Schneibel  and
Dewey S. Easton
Scott A. Speakman
Affiliation:
Metals & Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831–6064, USA
Joachim H. Schneibel
Affiliation:
Metals & Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831–6064, USA
Dewey S. Easton
Affiliation:
Metals & Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831–6064, USA
Get access

Abstract

Sodium alanate was milled with and without TiCl3. The hydrogen release and uptake was measured during temperature-programmed absorption and desorption, as well as by isothermal charging and discharging, using a Sieverts' type apparatus. These data were supplemented by in-situ X-ray diffraction studies of hydrogen desorption. Rate constants derived from XRD were slower than those derived from volumetric H2 measurements. Al formation observed in XRD exceeded that expected from the observed decomposition of NaAlH4 and Na3AlH6.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 837: Symposium N – Materials for Hydrogen Storage – 2004 , 2004 , N3.3
Copyright
Copyright © Materials Research Society 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Gross, K.J., Guthrie, S., Takara, S., and Thomas, G., J. Alloys Comp. 297, 270–81 (2000).Google Scholar
2. Gross, K.J., Sandrock, G., and Thomas, G.J., J. Alloys Comp. 330–332, 691–5 (2002).Google Scholar
3. Balogh, M.P., Tibbetts, G.G., Pinkerton, F.E., Meisner, G.P., and Olk, C.H., J. Alloys Comp. 350, 136–44 (2003).Google Scholar
4. Inorganic Crystal Structure Database, Fachinformationszentrum Karlsruhe (2003).Google Scholar
5. Rönnebro, E., Noréus, D., Kadir, K., Reiser, A., and Bogdanovic, B., J. Alloys Comp. 299, 101–6 (2000).Google Scholar
6. Kiyobayashi, T., Srinivasan, S.S., Sun, D., and Jensen, C.M., J. Phys. Chem. A 107, 7671–4 (2003).Google Scholar