Thermal conductivity of ammonia borane complex and its composites with aluminum powder

    Authors

    N. Mohajeri; A. T-Raissi;K. K. Ramasamy

    Comments

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    Abbreviated Journal Title

    Thermochim. Acta

    Keywords

    ammonia borane; thermal conductivity; hydrogen storage; N-H COMPOUNDS; DECOMPOSITION; Chemistry, Analytical; Chemistry, Physical

    Abstract

    The thermal conductivity of ammonia borane (AB) complex, in the temperature range of 300-420 K, was measured experimentally using ASTM method E 1225. At 300 K, the thermal conductivity of pure AB was found to be approximately 15 W/m-K. A composite pellet prepared by mixing 10 wt% aluminum powder with AB had a thermal conductivity that was a factor of 4 higher than that of pure AB complex. The extent of the pyrolytic weight loss for AB/Al composite and pure AB complex was 25.4% and 33.9%, respectively-indicating comparatively lower levels of volatile species evolved as impurities (e.g. monomeric aminoborane, borazine, diborane, etc.) in the product hydrogen. (C) 2006 Elsevier B.V. All rights reserved.

    Journal Title

    Thermochimica Acta

    Volume

    452

    Issue/Number

    1

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    28

    Last Page

    30

    WOS Identifier

    WOS:000243692900005

    ISSN

    0040-6031

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