The Influence of Vanadium Addition on Hydrogen Capacity and Absorption—Desorption Kinetics of the Eutectic Ti—Zr—Mn Alloy

V. A. Dekhtiarenko

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03680 Kyiv-142, Ukraine

Received: 29.11.2013. Download: PDF

The influence of partial replacement of titanium by vanadium on the structure and phase composition of the cast Ti$_{45.5}$Zr$_{30}$Mn$_{22.5}$V$_{2}$ alloy and on the kinetic parameters of hydrogenation and dehydrogenation processes is studied. As established, the vanadium introduction does not affect the sorption of hydrogen at the first hydrogenation cycle, however, the temperature of hydrogen desorption reduced by 25°C. The alloy activated by the first sorption—desorption cycle is capable for hydrogen absorption even at room temperature and a pressure of 0.23 MPa. As shown, the bulk alloy can be crushed into the powder with average particle size of $\cong$ 80 $\mu$m by two cycles of sorption—desorption + sorption.

Key words: eutectic, hydrogenation, dehydrogenation, hydrogen capacity, particle size.

URL: http://mfint.imp.kiev.ua/en/abstract/v36/i03/0375.html

DOI: https://doi.org/10.15407/mfint.36.03.0375

PACS: 61.66.Dk, 66.30.je, 68.43.Mn, 81.20.Ev, 88.30.rd

Citation: V. A. Dekhtiarenko, The Influence of Vanadium Addition on Hydrogen Capacity and Absorption—Desorption Kinetics of the Eutectic Ti—Zr—Mn Alloy, Metallofiz. Noveishie Tekhnol., 36, No. 3: 375—381 (2014) (in Russian)


REFERENCES
  1. V. Ivanchenko, T. Pryadko, V. Dekhtyarenko, and T. Kosorukova, Chem. Metals Alloys, 1, No. 2: 133 (2008).
  2. E. A. Anikina and V. N. Verbetsky, Int. J. Hydrogen Energy, 36: 1344 (2011). Crossref
  3. V. N. Verbetskiy, Sintez i Svojstva Mnogokomponentnyh Gidridov Metallov (Thesis ... Dr. Chem. Sci.) (Moscow: M. V. Lomonosov Moscow State Univ.: 1998) (in Russian).
  4. G. F. Kobzenko and A. A. Shkola, Zavodskaya Laboratoriya, 7: 41 (1990) (in Russian).
  5. S. V. Maksimova, V. F. Khorunov, V. G. Ivanchenko, and T. V. Pryadko, Metallofiz. Noveishie Tekhnol., 34, No. 4: 497 (2012) (in Russian).