NaAlH<inf>4</inf> confined in ordered mesoporous carbon

Christian Bonatto Minella, Inge Lindemann, Pau Nolis, Anja Kießling, Maria Dolors Baró, Markus Klose, Lars Giebeler, Bernd Rellinghaus, Jürgen Eckert, Ludwig Schultz, Oliver Gutfleisch

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14 Citations (Scopus)

Abstract

In this paper we performed a comprehensive investigation of the structural and sorption properties of a 40 wt. % NaAlH4 confined in a ordered mesoporous carbon (OMC, i.e. CMK-3) by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), 23Na{1H} and 27Al{1H} solid-state magic angle spinning-nuclear magnetic resonance (MAS-NMR). This study evidences a remarkable improvement of the sorption kinetics of NaAlH4 due to its existence in nanometer size within the OMC. The pressure composition isotherm (PCI) analysis (for the re-absorption step) of the nanoconfined NaAlH4 would suggest an alteration of its equilibrium thermodynamic properties. Copyright © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)8829-8837
JournalInternational Journal of Hydrogen Energy
Volume38
DOIs
Publication statusPublished - 17 Jul 2013

Keywords

  • 23 1 Na{ H} magic angle spinning-nuclear magnetic resonance
  • 27 1 Al{ H} magic angle spinning-nuclear magnetic resonance
  • Complex hydride
  • Hydrogen storage
  • Nanoconfinement
  • Transmission electron microscopy

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