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

  • Scott A. Speakman (a1), Joachim H. Schneibel (a1) and Dewey S. Easton (a1)

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.

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

  • Scott A. Speakman (a1), Joachim H. Schneibel (a1) and Dewey S. Easton (a1)

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