Lightweight sodium alanate thin films grown by reactive sputtering

Journal article (2009)
Department
DelftChemTech (AS) (TU Delft)
Copyright: © 2009 The Author(s); American Institute of Physics
DOI: https://doi.org/doi:10.1063/1.3236525
Hydrogen storage Segregation Desorption Thin films Sputter deposition Aluminium compounds Doping profiles Infrared spectra Sodium compounds
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Published Date

21-09-2009

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Source:

Applied Physics Letters, 95 (12), 2009

ISSN:

0003-6951

ISBN:

0003-6951

Source:

http://link.aip.org/link/APPLAB/v95/i12/p121904/s1

Faculty

Applied Sciences

Department

DelftChemTech

Abstract

We report the preparation of sodium alanate, a promising hydrogen storage material, in a thin film form using cosputtering in a reactive atmosphere of atomic hydrogen. We study the phase formation and distribution, and the hydrogen desorption, with a combination of optical and infrared transmission spectroscopy. We show that the hydrogen desorption, the phase segregation, and the role of the dopants in these complex metal hydrides can be monitored with optical measurements. This result shows that a thin film approach can be used for a model study of technologically relevant lightweight metal hydrides.

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