Influence of Gas Molecules From an Atmosphere on Absorption of Hydrogen by Nanocrystalline Porous (V, 10 at.% Ti)N$_{x}$ Films

V. V. Vlasov$^{1}$, A. G. Guglya$^{1}$, Yu. A. Marchenko$^{1}$, E. S. Solopikhina$^{1}$, E. N. Zubarev$^{2}$

$^{1}$National Science Center Kharkov Institute of Physics and Technology, NAS of Ukraine, 1, Akademicheskaya Str., 61108 Kharkov, Ukraine
$^{2}$National Technical University ‘Kharkiv Polytechnic Institute’, 21 Frunze Str., 61002 Kharkiv, Ukraine

Received: 29.12.2015; final version - 21.01.2016. Download: PDF

The patterns of influence of gas molecules from the residual atmosphere in the vacuum chamber on the thermodynamic and gravimetric characteristics of porous absorbents of hydrogen are investigated by example of vanadium nitride (V, 10 at.% Ti)N$_{x}$ nanocrystalline thin films. As shown, the open pore structure of nanocrystalline thin films actively absorbs not only hydrogen molecules, but also larger molecules. Hydrogen saturation at 20°C leads to the fact that quite large part of the gas molecules from the residual atmosphere is blocked inside the pores. Thereby, the absorption capacity of the material is reduced (no more than 3 wt.%), and the temperature of hydrogen desorption is increased (500°C). High-temperature activation and hydrogen saturation at temperature of 250°C of nanoporous structure facilitate the reducing of desorption temperature to 275°C and the increasing of gravimetric capacitance to 7 wt.%.

Key words: nanocrystalline structures, thin films, ion beam-assisted deposition, hydrogen, absorption, storage.



PACS: 68.37.Hk, 68.43.Mn, 68.43.Nr, 73.63.Bd, 81.07.Bc, 81.15.Jj, 88.30.rd

Citation: V. V. Vlasov, A. G. Guglya, Yu. A. Marchenko, E. S. Solopikhina, and E. N. Zubarev, Influence of Gas Molecules From an Atmosphere on Absorption of Hydrogen by Nanocrystalline Porous (V, 10 at.% Ti)N$_{x}$ Films, Metallofiz. Noveishie Tekhnol., 38, No. 3: 353—365 (2016) (in Russian)

  1. V. Bryk, A. Guglya, M. Litvinenko, I. Marchenko, E. Melnikova, I. Sassa, and R. Vasilenko, Radiat. Eff. Defects S, 166, Iss. 4: 282 (2011). Crossref
  2. V. Bryk, R. Vasilenko, A. Goncharov, T. Grigorova, A. Guglya, V. Kolobrodov, M. Guglya, I. Marchenko, E. Melnikova, and I. Sassa, Poverkhnost. Rentgenovskie Sinkhrotronnye i Neytronnye Issledovaniya, No. 6: 66 (2011) (in Russian).
  3. A. Goncharov, A. Guglya, and E. Melnikova, Int. J. Hydrogen Energy, 37: 18061 (2012). Crossref
  4. L. Johnson, M. Dresser, and E. Donaldson, J. Vac. Sci. Technol., 9: 857 (1972). Crossref
  5. S. Ko and L. Schmidt, Surf. Sci., 47: 557 (1975). Crossref
  6. A. Pryde and C. Titcomb, Trans. Faradey Soc., 65: 2758 (1969). Crossref
  7. E. Fromm and H. Uchida, J. Less-Common Met., 66: 77 (1979). Crossref
  8. H. Wenzl, K. Klatt, P. Meuffets, and K. Papathanassopoulos, J. Less-Common Met., 89, Iss. 2: 489 (1983). Crossref
  9. K. Papathanassopoulos and H. Wenzl, J. Phys. F. Met. Phys., 12: 1369 (1982). Crossref
  10. H. Uchida and E. Fromm, J. Less-Common Met., 95: 139 (1983). Crossref
  11. O. M. Barabash and Yu. N. Koval, Struktura i Svoystva Metallov i Splavov [Structure and Properties of Metals and Alloys] (Kiev: Naukova Dumka: 1986) (in Russian).
  12. E. Lee, J. M. Lee, J. H. Koo, W. Lee, and T. Lee, Int. J. Hydrogen Energy, 35: 6984 (2010). Crossref
  13. M. Singh, Int. J. Hydrogen Energy, 21: 223 (1996). Crossref
  14. G. Reisfeld, N. Jisrawi, M. Ruckman, and M. Strongin, Phys. Rev. B, 53: 4974 (1996). Crossref
  15. L. S. Palatnik, P. G. Cheremskoj, and M. Y. Fuks, Pory v Plenkakh [Pores in Films] (Moscow: Energoizdat: 1982) (in Russian).
  16. V. I. Odolevskiy, ZhTF, 21, No. 6: 667 (1951) (in Russian).
  17. C. A. Neugebauer and M. B. Webb, J. Appl. Phys., 33: 74 (1962). Crossref
  18. A. Gringoz, N. Glandut, and S. Valette, Electrochem. Commun., 11: 2044 (2009). Crossref
  19. H. Ding, X. Fan, C. Li, X. Liu, D. Jiang, and Ch. Wang, J. Alloys Compd., 551: 67 (2013). Crossref