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Study on the thermal decomposition of NaBH4 catalyzed by ZrCl4

Kumar, Sanjay et al.

International journal of hydrogen energy. Volume 42:Number 35 (2017, August 31st); pp 22432-22437 -- Elsevier

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  • Title:
    Study on the thermal decomposition of NaBH4 catalyzed by ZrCl4
  • Author: Kumar, Sanjay;
    Jain, Ankur;
    Miyaoka, Hiroki;
    Ichikawa, Takayuki;
    Kojima, Yoshitsugu
  • Found In: International journal of hydrogen energy. Volume 42:Number 35 (2017, August 31st); pp 22432-22437
  • Journal Title: International journal of hydrogen energy
  • Subjects: Hydrogène (Combustible)--Périodiques; Hydrogen as fuel--Periodicals; Hydrogen as fuel; Periodicals; Catalyst--Thermal analysis--ZrCl4--NaBH4--Activation energy; Dewey: 665.81
  • Rights: Licensed
  • Publication Details: Elsevier
  • Abstract: Abstract The catalytic effect of zirconium tetrachloride (ZrCl4) on the thermal dehydrogenation of NaBH4has been studied. The ZrCl4reduced to ZrCl2and metallic zirconium which exhibit the high catalytic activity during thermal dehydrogenation. The activation energy corresponding to dehydrogenation of NaBH4is remarkably reduced to 180 kJ/mol in the presence of a catalyst as compared to pure-NaBH4which was found to be 275 kJ/mol under the similar experimental conditions. The reduced activation energy leads to decreased onset dehydrogenation temperature (<300 °C). A substantial amount of sodium remained at the end of the dehydrogenation of catalyzed sample. The low-temperature dehydrogenation of catalyzed NaBH4could be useful to manage the evaporation of sodium metal. Graphical abstract Image 1 Highlights The thermal dehydrogenation of NaBH4was studied. The ZrCl4catalyzed NaBH4dehydrogenated at much low temperature. The apparent activation energy substantially reduced due to catalyst. NaBH4dehydrogenated via Na metal intermediate.
  • Identifier: System Number: ETOCvdc_100064463664.0x000001; Journal ISSN: 0360-3199; 10.1016/j.ijhydene.2017.02.060
  • Publication Date: 2017
  • Physical Description: Electronic
  • Shelfmark(s): 4542.290000
  • UIN: ETOCvdc_100064463664.0x000001

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