Thermochemical activation of hydrogen in the process of desorption from metal hydride




hydrogen, ionization, metal hydride activation, desorption.


The results of mass spectrometric studies of the energy state of hydrogen molecules with the usage of the electron impact ionization efficiency curves measurement method, both during desorption and in the mode of hydrogen flowing through the metal hydride layer, are presented. The dependences of the breakdown voltage on the pressure in the gas-discharge chamber for an electric discharge in activated hydrogen are obtained. Those dependencies indicate a significant decrease in the ionization potential of hydrogen under the electric current influence. Within the framework of the presented material, the results of hydrogen emission from hydride-forming materials based on LaNi5 are presented and an assessment of its thermodynamic state is given, which made it possible to study the energy-physical characteristics of gas-discharge processes. The possibility of practical use of metal hydride activation to increase the energy and operational efficiency of electric-discharge hydrogen systems is shown.

Author Biography

Mykola Zipunnikov, A.M. Pidhorny Institute of Mechanical Engineering Problems of NASU

Hydrogen Energetics Department, Senior Researcher


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