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Information × Registration Number 0219U001465, 0116U006577 , R & D reports Title Development of aluminum and magnesium based energy acummulating substances capable to evolve hydrogen from water for feeding of fuel cells. popup.stage_title Head Manilevych Fedir Dmytrovych, Registration Date 31-01-2019 Organization V.I.Vernadskii Institute of General and Inorganic Chemistry NASU popup.description2 Report on research work: 40 p., 18 figures, 2 tables, 50 references. Energy-accumulating substances (EARs) based on aluminum and its alloys with Mg (3.0 or 1.5 wt.%), Bi (3.0 wt.%) or Sb (3.0 wt.%) and activated by eutectic Ga-In-Sn (5.0 wt.%) have been prepared and investigated. It has been established that in the presence of magnesium and bismuth additives in activated aluminum, the rate of hydrogen evolution from water is significantly reduced, but it remains practically constant for a long time, what is important for simplifying the hydrogen supply system of fuel cells. The increase in magnesium content in activated aluminum leads to a decrease in the rate of hydrolysis. Introduction of antimony to activated aluminum somewhat slows down its hydrolysis, but the form of dependence of the rate of hydrogen accumulation on the duration of the process does not changes. An increase in temperature from 25 to 70 °С leads to a significant increase in the hydrolysis rate of all studied EARs. The effective constants of the hydrolysis rate of EARs at temperatures 25, 40, 55 and 70 °С and the values of activation energy are calculated. The latter indicate that the hydrolysis of the investigated EAPs proceeds with kinetic speed constraints. Product Description popup.authors Данильцев Борис Ілліч Козін Леонід Хомич Куций Андрій Васильович Пірський Юрій Кузьмич popup.nrat_date 2020-04-02 Close