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  • Author(s):
    J. M. Pauls, N. F. Shkodich, A. S. Mukasyan
    Abstract:

    We report the results from the investigation of the mechanisms of self-sustained reaction in mechanically induced TiN/B nanocomposites. The exothermic displacement reaction, 3B + TiN → BN + TiB2, with an adiabatic reaction temperature of 1905 K, was initiated through two different means: localized thermal heating and mechanical stimulation by high-energy ball milling. Comprehensive studies strongly indicate that the chemical interaction in the system involves three main stages. Solid-state ma…

    Date Published:
    2019-04
    Record Visibility:
    Public
  • Author(s):
    J. T. Miller, V. Danghyan, A. S. Mukasyan, E. E.Wolf
    Abstract:

    We report on the high activity and stability towards deactivation during ethanol decomposition of mono (Ni, Cu) and bimetallic Ni-Cu catalysts supported on ceria and silica that were prepared by impregnated support solution combustion synthesis (ISCS). Ni supported on ceria, behaves much like bulk Ni, as it deactivates within a few hours of time on stream (TOS). Addition of Cu improves the stability of ceria supported Ni-Cu bimetallic catalysts but it still deactivates during 10 h of TOS. Ni …

    Date Published:
    2019-02
    Record Visibility:
    Public