Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-06-28T12:17:37.965Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of The Preparation Conditions on the Structure of Hydrotalcite Layered Double Hydroxides

Published online by Cambridge University Press:  16 February 2011

A.V. Lukashin ,
S.V. Kalinin ,
M.P Nikiforov ,
A.I Zhirov ,
L.I. Kheifets ,
V.I Privalov  and
A.A. Vertegel
A.V. Lukashin
Affiliation:
Inorganic Chemistry Division, Dept. Chemistry, Moscow State University, 119899, Moscow, Russia, alex@inorg.chem.msu.ru
S.V. Kalinin
Affiliation:
Inorganic Chemistry Division, Dept. Chemistry, Moscow State University, 119899, Moscow, Russia, alex@inorg.chem.msu.ru Now at the Dept. of Mat. Sci. Eng., University of Pennsylvania, Philadelphia, PA 19104, USA
M.P Nikiforov
Affiliation:
Inorganic Chemistry Division, Dept. Chemistry, Moscow State University, 119899, Moscow, Russia, alex@inorg.chem.msu.ru
A.I Zhirov
Affiliation:
Inorganic Chemistry Division, Dept. Chemistry, Moscow State University, 119899, Moscow, Russia, alex@inorg.chem.msu.ru
L.I. Kheifets
Affiliation:
Inorganic Chemistry Division, Dept. Chemistry, Moscow State University, 119899, Moscow, Russia, alex@inorg.chem.msu.ru
V.I Privalov
Affiliation:
Kurnakov Institute of General and Inorganic Chemistry, Moscow, Russia
A.A. Vertegel
Affiliation:
Inorganic Chemistry Division, Dept. Chemistry, Moscow State University, 119899, Moscow, Russia, alex@inorg.chem.msu.ru
Get access

Abstract

Influence of the precipitation conditions on the structure of Mg – Al layered double hydroxides (LDH) was investigated. XRD measurements demonstrate that species with hydrotalcite structure forms at high pH of reaction mixture (pH = 9 - 11), while at lower pH values (pH = 7 - 8) species with meixnerite structure arise. At the same time 27Al NMR studies of samples obtained at pH > 10 reveal the presence of tetrahedrally coordinated aluminum. XRD, NMR and IR data suggest that partial substitution of CO32- for Al(OH)4- in the interlayer space with subsequent formation of oxoaluminate bridges takes place at high pH. The optimal conditions for the preparation of intercalation-active materials were proposed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 547: Symposium DD – Solid-State Chemistry of Inorganic Materials II , 1998 , 239
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Hu, C., Zhang, X., He, Q., Wang, E., Transition Met. Chem. 22, 197–199 (1997).Google Scholar
2. Yun, S.K., Pinnavaia, T.J., Inorg Chem. 35, 6853–6860 (1996).Google Scholar
3. Han, K.S., Guerlou-Demourgues, L., Delmas, C., Solid State Ionics 98, 85–92 (1997).Google Scholar
4. Whilton, N.T., Vickers, P.J., Mann, Stephen, J. Mater. Chem. 7 (8), 1623–1629 (1997).Google Scholar
5. Carlino, S., Solid State Ionics 98, 73–84 (1997).Google Scholar
6. Carrado, K.A., Kostapapas, A., Solid State Ionics 26, 77–86 (1988).Google Scholar
7. Cavani, F., Trifiro, F., Vaccari, A., Catal. Today 11, 173–195 (1991).Google Scholar
8. Weir, M.R., More, J., Kydd, R.A., Chem. Mater. 9, 1686–1690 (1997).Google Scholar
9. Reichle, W.T., J. Catal. 94, 547–555 (1985).Google Scholar