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Structure of Zirconia Nanoparticles used for Pillaring of Clay

Published online by Cambridge University Press:  15 March 2011

V. A. Sadykov ,
T. G. Kuznetsova ,
V. P. Doronin ,
T. P. Sorokina ,
D. I. Kochubei ,
B. N. Novgorodov ,
V. N. Kolomiichuk ,
E. M. Moroz ,
D. A. Zyuzin  and
E. A. Paukshtis
...Show all authors
V. A. Sadykov
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
T. G. Kuznetsova
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
V. P. Doronin
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
T. P. Sorokina
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
D. I. Kochubei
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
B. N. Novgorodov
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
V. N. Kolomiichuk
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
E. M. Moroz
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
D. A. Zyuzin
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
E. A. Paukshtis
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
V. B. Fenelonov
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
A. Ya. Derevyankin
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
S. A. Beloshapkin
Affiliation:
Boreskov Institute of Catalysis, Lavrentieva, 5, Novosibirsk 630090, Russia, sadykov@catalysis.nsk.su
V. A. Matyshak
Affiliation:
Semenov Institute of Chemical Physics, Moscow, Russia
G. A. Konin
Affiliation:
Semenov Institute of Chemical Physics, Moscow, Russia
J. R. H. Ross
Affiliation:
Limerick University, Limerick, Ireland
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Abstract

SAXS and EXAFS were applied to study genesis of polynuclear zirconium hydroxyspecies in pillaring solutions as dependent upon the zirconium concentration, addition of alkaline-earth chlorides and aging. After the montmorillonite clay pillaring, the structure of zirconium nanopillars was characterized by applying X-ray structural analysis, UV-Vis, FTIRS of adsorbed CO and nitrogen adsorption isotherms. Main pillaring species appear to be nanorods comprised of several Zr4 tetramers. Basic structural features of the tetramers are preserved in zirconia nanoparticles fixed between alumosilicate layers in pillared clays. In calcined samples, those nanoparticles contain only bridging hydroxyls and/or oxygen anions responsible for bonding within pillars and between pillars and clay sheets.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 703: Symposia U/V – Nanophase and Nanocomposite Materials IV , 2001 , V13.21
Copyright
Copyright © Materials Research Society 2002

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References

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