PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Czasopismo
2006 | 4 | 4 | 760-772
Tytuł artykułu

X-ray powder diffraction study of chromium-vanadium oxide compounds prepared by “soft chemistry” methods

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A novel aqueous method was used to synthesise mixed chromium-vanadium oxide hydrates with various chromium content, via the reaction of peroxo-polyacids of chromium and vanadium. The resulting materials are gelatinous. The dehydration of the gels result in a brown coloured amorphous powder. Depending on the chromium content, the compounds have a different characteristic crystallisation temperature upon the further heating. The crystalline compounds, except for the low chromium ones, go on a phase transition and decompose with increasing temperature. By refining the XRPD measurement data of the compounds, the type and parameters of the unit cells were determined. The experimental data were in concordance with the calculated values, using the PWC code. The lattice parameters and the crystalline structure were changed with the variation of chromium content.
Wydawca
Czasopismo
Rocznik
Tom
4
Numer
4
Strony
760-772
Opis fizyczny
Daty
wydano
2006-12-01
online
2006-12-01
Twórcy
  • Institute of Isotopes, Hungarian Academy of Sciences, P.O. Box 77, H-1525, Budapest, Hungary
autor
  • Institute of Isotopes, Hungarian Academy of Sciences, P.O. Box 77, H-1525, Budapest, Hungary
autor
  • Department of Nuclear Chemistry, Research Group of Nuclear Methods in Structural Chemistry HAS, Eötvös Lóránd University, P.O. Box 32, H-1518, Budapest, Hungary
autor
  • Institute of Isotopes, Hungarian Academy of Sciences, P.O. Box 77, H-1525, Budapest, Hungary , szirtes@iki.kfki.hu
Bibliografia
  • [1] M.S. Whittingham, R. Chen, T. Chirayil and P.Y. Zavalij: “Cathode materials for advanced batteries in “Exploratory Research and development of batteries for electric and hybrid vehicles””, Electrochem. Soc. Proc., Vol. 96(5), (1996), p. 76.
  • [2] E. Baundin, S. Denis, F. Orsini, L. Seguin, M. Touboul and J.M. Tarascon: “On the synthesis of mono-, di-, and trivalent element vanadates”, J. Mater. Chem., Vol. 9, (1999), p. 101. http://dx.doi.org/10.1039/a805662e[Crossref]
  • [3] D. Oliver: “C.R. Préparation et contribution á l’étude des métavanadates de chrome”, Acad. Sci. Paris, Vol. 264C, (1967), p. 1176.
  • [4] D. Oliver: “C.R. Vanadates de chrome: contribution á l’étude de la structure des vanadates de chrome non stoechiometriques á deficit d’oxygéne”, Acad. Sci. Paris, Vol. 272, (1971), p. 1225.
  • [5] O. Pozdnyakova, E. Kuzmann and L. Szirtes: “Preparation of a new vanadium-chromium oxide with a two-dimensional structure”, Sol. State Ionics, Vol. 161, (2003), p. 301. http://dx.doi.org/10.1016/S0167-2738(03)00296-0[Crossref]
  • [6] V.K. Kato, E.T. Muromatchi and Y. Kanke: “Die structur der kupfer-vanadium bronze Cu0.261V2O5; Eine verfeinerung”, Acta Cryst., Vol. C45, (1989), p. 1845.
  • [7] G. Gregorie, N. Baffier, A. Khan-Harari and J.C. Badot: “X-ray powder diffraction study of a new vanadium oxide Cr0.11V2O5.16 synthesised by a sol-gel process”, Mater. Chem., Vol. 8, (1998), p. 2103. http://dx.doi.org/10.1039/a801385c
  • [8] P.Y. Zavalij and M.S. Whittingham: “Structural chemistry of vanadium oxides with open frameworks”, Acta Cryst., Vol. B55, (1999), p. 627 and references herein
  • [9] Z. Klencsár: “EXRAY” peak searching computer software, Personal communication, 1998.
  • [10] H.M. Ritveld: “Profile refinement method for nuclear and magnetic structures”, J. Appl. Crystallogr., Vol. 2, (1969), p. 65. http://dx.doi.org/10.1107/S0021889869006558[Crossref]
  • [11] W. Kraus and G. Nolze: Software Powder Cell, version 2.3, 1999.
  • [12] O. Pozdnyakova, J. Megyeri, E. Kuzmann and L. Szirtes: “Thermoanalytical characterisation of vanadium-chromium oxide compounds prepared by ’soft chemistry’ method”, J. Thermal Anal. Cal., Vol. 82, (2005), p. 409. http://dx.doi.org/10.1007/s10973-005-0910-4[Crossref]
  • [13] O. Pozdnyakova, non-published data.
  • [14] M. Hibino, M. Ugaji, A. Kisgimoto and T. Kudo: “Preparation and Li-interaction of a new vanadium oxide with a two dimensional structure”, Sol. State Ionics, Vol. 79, (1995), p. 239. http://dx.doi.org/10.1016/0167-2738(95)00068-H[Crossref]
  • [15] H.G. Bachman, F.R. Ahmed and W.H. Barnes: “The crystal structure of vanadium pentoxide”, Z. Kristallogr., Vol. 115, (1961), p. 110. http://dx.doi.org/10.1524/zkri.1961.115.1-2.110[Crossref]
  • [16] E. Filipek, J. Walczak and P. Tabero: “Synthesis and some properties of the phase Cr2V4O13”, J. Alloys Comp., Vol. 265, (1998), p. 121. http://dx.doi.org/10.1016/S0925-8388(97)00403-9[Crossref]
  • [17] R. Enjalbert, P. Lecante and J. Galy: “Crystal structure of As2V4O13”, Acta Cryst., Vol. C42(17), (1986), p. 1465.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-006-0043-z
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.