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Sodium Hydrazinidoborane: A Chemical Hydrogen-Storage Material

Authors

  • Romain Moury,

    1. IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, 34095, Montpellier (France), Fax: (+33) 04-67-14-91-19
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  • Dr. Umit B. Demirci,

    Corresponding author
    1. IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, 34095, Montpellier (France), Fax: (+33) 04-67-14-91-19
    • IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, 34095, Montpellier (France), Fax: (+33) 04-67-14-91-19
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  • Dr. Takayuki Ichikawa,

    1. Institute for Advanced Materials Research, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8530 (Japan)
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  • Prof. Yaroslav Filinchuk,

    1. Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve (Belgium)
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  • Dr. Rodica Chiriac,

    1. Laboratoire des Multimatériaux et Interfaces, Université Lyon 1, CNRS, UMR 5615, 43 Boulevard du 11 Novembre 1918, 69622 Villeurbanne (France)
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  • Dr. Arie van der Lee,

    1. IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, 34095, Montpellier (France), Fax: (+33) 04-67-14-91-19
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  • Prof. Philippe Miele

    1. IEM (Institut Europeen des Membranes), UMR 5635 (CNRS-ENSCM-UM2), Universite Montpellier 2, Place E. Bataillon, 34095, Montpellier (France), Fax: (+33) 04-67-14-91-19
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Abstract

Herein, we present the successful synthesis and full characterization (by 11B magic-angle-spinning nuclear magnetic resonance spectroscopy, infrared spectroscopy, powder X-ray diffraction) of sodium hydrazinidoborane (NaN2H3BH3, with a hydrogen content of 8.85 wt %), a new material for chemical hydrogen storage. Using lab-prepared pure hydrazine borane (N2H4BH3) and commercial sodium hydride as precursors, sodium hydrazinidoborane was synthesized by ball-milling at low temperature (−30 °C) under an argon atmosphere. Its thermal stability was assessed by thermogravimetric analysis and differential scanning calorimetry. It was found that under heating sodium hydrazinidoborane starts to liberate hydrogen below 60 °C. Within the range of 60–150 °C, the overall mass loss is as high as 7.6 wt %. Relative to the parent N2H4BH3, sodium hydrazinidoborane shows improved dehydrogenation properties, further confirmed by dehydrogenation experiments under prolonged heating at constant temperatures of 80, 90, 95, 100, and 110 °C. Hence, sodium hydrazinidoborane appears to be more suitable for chemical hydrogen storage than N2H4BH3.

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