A step forward to the dehydrogenation reversibility of amine-borane adducts by coupling sodium and hydrocarbon groups

Fabrice Leardini, Daniele Mirabile Gattia, Amelia Montone, Fermin Cuevas, Elena Perez-Mayoral, Maria J. Valero-Pedraza, Miguel A. Bañares, Rosario Cantelli

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4 Citations (Scopus)

Abstract

Mechanochemistry has played an important role in the synthesis of many novel compounds, in particular within the field of materials for solid state hydrogen storage applications. This work investigates reactive milling of ethane 1,2-di-amineborane (EDAB) and sodium hydride which yields the evolution of one equivalent of hydrogen and the formation of a novel compound (named NaEDAB) as evidenced by X-ray diffraction analyses. We postulate for this compound the chemical formula NaB2C2N2H13. The thermolysis of NaEDAB below 400 °C releases about 8 wt.% pure hydrogen, without producing foaming. Moreover, sodium addition significantly modifies hydrogen desorption enthalpies, giving rise to milder exothermic H2release at moderate temperatures with respect to neat EDAB, as well as an endothermic desorption process at higher temperature. This result opens novel and promising perspectives towards the reversible hydrogenation of these compounds.
Original languageEnglish
Pages (from-to)2763 - 2767
Number of pages5
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number6
DOIs
Publication statusPublished - 19 Feb 2015
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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