Abstract
The local structure and cation distribution in Mo-Nb and V-Mo-Nb oxides with M5O14 type structures, which are active in the oxidative transformations of ethane, were studied by EXAFS spectroscopy. In the amorphous (or nanocrystalline) state, the oxides have fragments of the M5O14 structure in the form of stars of pentagonal MO7 bipyramids connected with MO6 octahedra along edges and arranged in a disordered matrix of octahedra. Possible crystallographic positions occupied by vanadium cations were revealed.
Similar content being viewed by others
References
E. M. Thorsteinson, T. P. Wilson, and F. G. Young, J. Catal., 52, No. 5, 116 (1978).
R. Burch and R. Swarnakar, Appl. Catal., 70, 129 (1991).
O. Desponds, R. L. Keiski, and G. A. Somorjai, Catal. Lett., 19, 17 (1993).
P. Botella, J. M. Lopez Nieto, A. Dejoz, et al., Catal. Today, 78, 507 (2003).
M. Merzuoki, B. Taouk, L. Monceaux, et al., Stud. Surf. Sci. Catal., 72, 165 (1992).
K. K. R. Ruth and R. Burch, J. Catal., 175, 16 (1998).
M. Roussel, M. Bouchard, E. Bordes-Richard, et al., Catal. Today, 99, 77 (2005).
M. Roussel, M. Bouchard, K. Karim, et al., Appl. Catal. A, 308, 62 (2006).
V. M. Bondareva, T. V. Andrushkevich, G. I. Aleshina, et al., React. Kinet. Catal. Lett., 87, No. 2, 377 (2006).
V. M. Bondareva, T. V. Andrushkevich, G. I. Aleshina, et al., ibid., 88, No. 1, 183.
X. Li and E. Iglesia, Appl. Catal. A, 334, 339–347 (2008).
E. Roedel, O. Timpe, A. Truscchke, et al., Catal. Today, 126, 112–118 (2007).
T. Yu. Kardash, L. M. Plyasova, V. M. Bondareva, et al., Kinet. Katal., No. 1 (2009).
T. Yu. Kardash, L. M. Plyasova, V. M. Bondareva, et al., J. Struct. Chem., 49, No. 4, 701–707 (2008).
D. I. Kochubei, EXAFS Spectroscopy of Catalysts, Nauka, Novosibirsk (1992).
K. V. Klementiev, J. Phys. D: Appl. Phys., 34, 209 (2001).
J. J. Rehr and A. L. Ankudinov, Rad. Phys. Chem., 70, 453 (2004).
L. Kihlborg, Arkiv Kemi, 21, 427 (1963).
T. Ekstrom and M. Nygen, Acta Chem. Scand., 26, 1836 (1972).
T. Ekstrom and M. Nygen, ibid., 1827.
M. A. Porai-Koshits and L. O. Atovmyan, Crystal Chemistry and Stereochemistry of Coordination Compounds of Molybdenum [in Russian], Nauka, Moscow (1974).
L. Brillouin, Science and Information Theory, Academic Press, New York (1962).
E. O. Brigham, The Fast Fourier Transform, Prentice-Hall, Englewood Cliffs, NJ (1974).
G. Smolentsev, A. V. Soldatov, and A. V. Feiters, Phys. Rev. B, 75, 144106 (2007).
Author information
Authors and Affiliations
Additional information
Original Russian Text Copyright © 2008 by T. Yu. Kardash, D. I. Kochubei, L. M. Plyasova, and V. M. Bondareva
__________
Translated from Zhurnal Strukturnoi Khimii, Vol. 49, Supplement, pp. S118–S124, 2008.
Rights and permissions
About this article
Cite this article
Kardash, T.Y., Kochubei, D.I., Plyasova, L.M. et al. EXAFS study of the local structure and cation distribution in V-Mo-Nb oxide. J Struct Chem 49 (Suppl 1), 116–123 (2008). https://doi.org/10.1007/s10947-008-0209-y
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10947-008-0209-y